>>> On 12.01.18 at 01:05, wrote:
> c/s b6c2c7f48a unfortunately broke booting on affected systems. Most of the
> time, ioemul_handle_quirk() doesn't write a custom stub, and the redundant
> call was depending on the seemingly-pointless writing of the default stub.
>
> Alter the ioemul_handle_qui
flight 117790 xen-unstable real [real]
http://logs.test-lab.xenproject.org/osstest/logs/117790/
Regressions :-(
Tests which did not succeed and are blocking,
including tests which could not be run:
test-amd64-amd64-xl-qemut-ws16-amd64 16 guest-localmigrate/x10 fail REGR. vs.
117311
Tests which
On Thu, 2018-01-11 at 17:36 +, Andrew Cooper wrote:
> It is generally worth doing a read to conditionally avoid a locked
> RMW,
> in the case that you expect the locked RMW to be unnecessary (i.e.
> the
> modification is already present).
>
> The same is not true for plain memory reads and wri
Hi!
First of all, my filters somehow failed to highlight this for me, so
sorry if I did not notice it earlier (and now, I need new filters
anyway, as the email I'm using is different :-D).
I'll have a look at the patch ASAP.
On Mon, 2018-01-08 at 11:12 +, George Dunlap wrote:
> On 01/08/2018
This is a very simplistic change limiting the amount of memory a running
64-bit PV guest has mapped (and hence available for attacking): Only the
mappings of stack, IDT, and TSS are being cloned from the direct map
into per-CPU page tables. Guest controlled parts of the page tables are
being copied
On Thu, 2018-01-04 at 13:05 +, Wei Liu wrote:
> From: Roger Pau Monne
>
> Avoid scheduling vCPUs that are blocked, there's no point in
> assigning
> them to a pCPU because they are not going to run anyway.
>
> Since blocked vCPUs are not assigned to pCPUs after this change,
> force
> a resch
On Fri, Jan 12, 2018 at 10:54:03AM +0100, Dario Faggioli wrote:
> Hi!
>
> First of all, my filters somehow failed to highlight this for me, so
> sorry if I did not notice it earlier (and now, I need new filters
> anyway, as the email I'm using is different :-D).
>
> I'll have a look at the patch
On Thu, 2018-01-11 at 16:34 +, Andrew Cooper wrote:
> Just as with test_bit, the non-atomic set/clear/change helpers can be
> better
> optimised by the compiler in the case that the nr parameter is
> constant, and
> it often is.
>
> This results in a general replacement of `mov $imm, %reg; bt*
flight 74300 distros-debian-jessie real [real]
http://osstest.xs.citrite.net/~osstest/testlogs/logs/74300/
Failures and problems with tests :-(
Tests which did not succeed and are blocking,
including tests which could not be run:
build-armhf-pvopsbroken
build-i38
flight 117803 qemu-upstream-4.10-testing real [real]
http://logs.test-lab.xenproject.org/osstest/logs/117803/
Failures and problems with tests :-(
Tests which did not succeed and are blocking,
including tests which could not be run:
build-armhf-pvopsbroken
build-
On Fri, 2018-01-12 at 10:45 +, Roger Pau Monné wrote:
> On Fri, Jan 12, 2018 at 10:54:03AM +0100, Dario Faggioli wrote:
>
> > Err... yes. BTW, either there are a couple of typos in the above
> > paragraph, or it's me that can't read it well. Anyway, just to be
> > clear, if we have 4 pCPUs, and
On Fri, Jan 12, 2018 at 12:16:47PM +0100, Dario Faggioli wrote:
> On Fri, 2018-01-12 at 10:45 +, Roger Pau Monné wrote:
> > On Fri, Jan 12, 2018 at 10:54:03AM +0100, Dario Faggioli wrote:
> >
> > > Err... yes. BTW, either there are a couple of typos in the above
> > > paragraph, or it's me that
>>> On 11.01.18 at 15:17, wrote:
> c/s 1308f0170c merged .init.text and .init.data, because EFI might properly
> write-protect r/o sections.
>
> However, this change makes xen-syms unusable for disassembly analysis. In
> particular, searching for indirect branches as part of the SP2/Spectre
> mi
Hi Ard,
On Thu, Jan 11, 2018 at 12:51:07PM +, Ard Biesheuvel wrote:
> On 9 January 2018 at 14:22, Daniel Kiper wrote:
> > Hi,
> >
> > Initialize UEFI secure boot state during dom0 boot. Otherwise the kernel
> > may not even know that it runs on secure boot enabled platform.
>
> Hi Daniel,
>
>
PVH only requires PHYS32_ENTRY to be set. Return immediately if that's
the case.
Also remove the printk in pvh_load_kernel.
Signed-off-by: Wei Liu
Reviewed-by: Andrew Cooper
---
xen/arch/x86/hvm/dom0_build.c | 4
xen/common/libelf/libelf-dominfo.c | 9 -
2 files changed, 8 in
Signed-off-by: Wei Liu
Reviewed-by: Andrew Cooper
---
tools/libxc/xc_dom_core.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/libxc/xc_dom_core.c b/tools/libxc/xc_dom_core.c
index b5f316a1dc..303cb971e8 100644
--- a/tools/libxc/xc_dom_core.c
+++ b/tools/libxc/xc_dom_c
From: Bob Moore
PM Timer is now optional.
This support is already in Windows8 and "SHOULD" come out in ACPI 5.0A
(if all goes well).
The change doesn't affect Xen directly, because it does not rely
on the presence of the PM timer.
Signed-off-by: Bob Moore
Signed-off-by: Lv Zheng
Signed-off-by
From: Jonathan Ludlam
Signed-off-by: Jonathan Ludlam
Signed-off-by: Sergey Dyasli
Signed-off-by: Andrew Cooper
Signed-off-by: Wei Liu
---
stubdom/grub/kexec.c | 7 +-
tools/helpers/init-xenstore-domain.c | 4 +-
tools/libxc/include/xc_dom.h | 48 ++-
tool
From: Andrew Cooper
This reduces the amount of line wrapping from guests; Xen in particular likes
to print lines longer than 80 characters.
Signed-off-by: Andrew Cooper
Reviewed-by: Wei Liu
---
xen/include/xen/sched.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/xen/inc
From: Roger Pau Monne
Use the ECX register of the hypervisor leaf 5. The EAX register on
this leaf is a flags field that can be used to notice the presence of
the domain id in ECX. Note that this is only available to HVM guests.
Signed-off-by: Roger Pau Monné
---
Changes since v1:
- Use leaf 5
From: Andrew Cooper
CPUID Faulting can be virtulised for HVM guests without hardware support,
meaning it can be offered to SVM guests.
Signed-off-by: Andrew Cooper
---
xen/arch/x86/hvm/svm/svm.c | 6 ++
xen/arch/x86/msr.c | 3 ++-
2 files changed, 8 insertions(+), 1 deletion(-)
di
Hi all
This is a patch series to run PV guest inside a PVH container. It should
also support running under HVM mode but we've not extensively tested it.
The future plan is for this to merge with the Vixen work Amazon did.
The series can be found at:
https://xenbits.xen.org/git-http/people/l
>>> On 11.01.18 at 17:34, wrote:
> Just as with test_bit, the non-atomic set/clear/change helpers can be better
> optimised by the compiler in the case that the nr parameter is constant, and
> it often is.
>
> This results in a general replacement of `mov $imm, %reg; bt* %reg, mem` with
> the mor
From: Andrew Cooper
... to reduce the quantity of #ifdef EFI.
Signed-off-by: Andrew Cooper
Reviewed-by: Wei Liu
---
CC: Jan Beulich
---
xen/arch/x86/xen.lds.S | 50 +-
1 file changed, 13 insertions(+), 37 deletions(-)
diff --git a/xen/arch/x86
From: Andrew Cooper
Signed-off-by: Andrew Cooper
Reviewed-by: Wei Liu
---
xen/arch/x86/time.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/xen/arch/x86/time.c b/xen/arch/x86/time.c
index 2a879502a2..3b654d7b7d 100644
--- a/xen/arch/x86/time.c
+++ b/xen/arch/x86/time.c
Signed-off-by: Wei Liu
---
xen/arch/x86/setup.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/xen/arch/x86/setup.c b/xen/arch/x86/setup.c
index 32ec741591..0c9b55ff71 100644
--- a/xen/arch/x86/setup.c
+++ b/xen/arch/x86/setup.c
@@ -632,8 +632,8 @@ static char * __init cm
From: Andrew Cooper
Signed-off-by: Andrew Cooper
Signed-off-by: Wei Liu
---
docs/misc/xen-command-line.markdown | 11 ++
xen/arch/x86/Kconfig| 22 +++
xen/arch/x86/pv/Makefile| 1 +
xen/arch/x86/pv/shim.c | 39 ++
From: Jon Ludlam
No longer passing NULL into xc_domain_create() allows for the creation
of PVH guests.
Signed-off-by: Jon Ludlam
Signed-off-by: Andrew Cooper
---
tools/ocaml/libs/xc/xenctrl.ml | 2 +-
tools/ocaml/libs/xc/xenctrl.mli | 2 +-
tools/ocaml/libs/xc/xenctrl_stubs.c | 22
From: Roger Pau Monne
Note that the unmask and the virq operations are handled by the shim
itself, and that FIFO event channels are not exposed to the guest.
Signed-off-by: Roger Pau Monné
Signed-off-by: Anthony Liguori
Signed-off-by: Sergey Dyasli
---
Changes since v1:
- Use find_first_set_
From: Sergey Dyasli
Signed-off-by: Sergey Dyasli
---
docs/misc/xen-command-line.markdown | 16 +
xen/arch/x86/dom0_build.c | 18 ++-
xen/arch/x86/pv/shim.c | 46 +
xen/include/asm-x86/pv/shim.h | 6 +
From: Andrew Cooper
With CPUID Faulting offered to SVM guests, move Xen's faulting code to being
common rather than Intel specific.
This is necessary for nested Xen (inc. pv-shim mode) to prevent PV guests from
finding the outer HVM Xen leaves via native cpuid.
Signed-off-by: Andrew Cooper
---
Simple infrastructure to keep track of PFN space usage, so that we can
use unpopulated PFNs to map special pages like shared info and grant
table.
As rangeset depends on malloc being ready so hypervisor_setup is
introduced for things that can be initialised late in the process.
Note that the PFN
Signed-off-by: Wei Liu
Signed-off-by: Andrew Cooper
Signed-off-by: Roger Pau Monné
---
v2: fixed clang build, dropped rb tag
---
xen/arch/x86/e820.c | 3 +--
xen/arch/x86/guest/pvh-boot.c | 20
xen/arch/x86/guest/xen.c | 3 +++
xen/a
From: Andrew Cooper
When the xen binary is loaded by libelf (in the future) we rely on the
elf loader to load the binary accordingly. Specify the load address so
that the resulting binary can make p_vaddr and p_paddr have different
values.
Signed-off-by: Andrew Cooper
Signed-off-by: Wei Liu
--
From: Roger Pau Monne
According to the PV ABI the initial virtual memory regions should
contain the xenstore and console pages after the start_info. Also set
the correct values in the start_info for DomU operation.
Signed-off-by: Roger Pau Monné
---
Changes since v1:
- Modify the position of t
From: Roger Pau Monne
Use an unpopulated PFN in order to map it.
Signed-off-by: Roger Pau Monne
Signed-off-by: Wei Liu
Signed-off-by: Andrew Cooper
---
Changes since v1:
- Use an unpopulated PFN to map the shared_info page.
- Mask all event channels.
- Report XENMEM_add_to_physmap error co
From: Roger Pau Monne
So that the guest is not able to deplete the memory pool of the shim
itself by trying to balloon up.
Signed-off-by: Roger Pau Monné
Acked-by: Jan Beulich
---
xen/arch/x86/pv/shim.c | 6 ++
1 file changed, 6 insertions(+)
diff --git a/xen/arch/x86/pv/shim.c b/xen/arc
From: Roger Pau Monne
And a dummy event channel upcall handler.
Note that with the current code the underlying Xen (L0) must support
HVMOP_set_evtchn_upcall_vector or else event channel setup is going to
fail. This limitation can be lifted by implementing more event channel
interrupt injection m
From: Ian Jackson
Signed-off-by: Ian Jackson
Signed-off-by: Wei Liu
---
v2: pvshim, not pvhshim
works with type "pvh", not type "pv"
pvshim_etc. options in config are not erroneously ignored
---
docs/man/xl.cfg.pod.5.in | 35 +++
tools/xl/xl_parse.c
From: Andrew Cooper
Signed-off-by: Andrew Cooper
Signed-off-by: Wei Liu
Reviewed-by: Jan Beulich
---
v2:
1. Use sched_shutdown
2. Move header inclusion
---
docs/misc/xen-command-line.markdown | 3 +++
xen/arch/x86/shutdown.c | 34 ++
xen/includ
From: Andrew Cooper
Signed-off-by: Andrew Cooper
---
v2: Add __read_mostly.
---
xen/arch/x86/guest/Makefile | 2 ++
xen/arch/x86/guest/xen.c| 75 +
xen/arch/x86/setup.c| 2 ++
xen/include/asm-x86/guest.h | 1 +
xen/include/a
From: Roger Pau Monne
If domid is not provided by L0 set domid to 1 by default. Note that L0
not provinding the domid can cause trouble if the guest tries to use
it's domid instead of DOMID_SELF when performing hypercalls that are
forwarded to the L0 hypervisor.
Since the domain created is no lo
From: Ian Jackson
And move the debugging options from the default config into a doc
comment in libxl_types.idl.
Signed-off-by: Ian Jackson
---
v2: pvshim, not pvhshim
works with type "pvh", not type "pv"
---
tools/libxl/libxl.h | 2 +-
tools/libxl/libxl_create.c | 5 -
tools
From: Sergey Dyasli
Signed-off-by: Sergey Dyasli
Signed-off-by: Wei Liu
[remove notify_guest helper and directly use pv_shim_inject_evtchn]
Signed-off-by: Roger Pau Monné
Signed-off-by: Wei Liu
---
Changes since v1:
- Use pv_shim_inject_evtchn.
---
xen/arch/x86/pv/shim.c | 31
From: Roger Pau Monne
Signed-off-by: Roger Pau Monné
---
Changes since v1:
- Fix hotplug so that v->initialized is checked before attempting to
bring up the physical CPU.
- Fix ARM compilation.
---
xen/arch/x86/pv/shim.c| 63 +++
xen/common/d
Signed-off-by: Wei Liu
Signed-off-by: Andrew Cooper
---
v2:
1. Fix comment.
2. Use cmpb $0.
3. Address comments on pvh-boot.c.
4. Haven't changed the pritnk modifiers to accommodate future changes.
5. Missing a prerequisite patch to relocate pvh_info to make __va work reliably.
[BLOCKER].
---
Signed-off-by: Wei Liu
Reviewed-by: Jan Beulich
---
xen/arch/x86/time.c | 32
1 file changed, 28 insertions(+), 4 deletions(-)
diff --git a/xen/arch/x86/time.c b/xen/arch/x86/time.c
index 4cbd068d17..c90524de9c 100644
--- a/xen/arch/x86/time.c
+++ b/xen/arch/x86
From: Andrew Cooper
Almost all users of fix_to_virt() actually want a pointer. Include the cast
within the definition, so the callers don't need to.
Two users which need the integer value are switched to using __fix_to_virt()
directly. A few users stay fully unchanged, due to GCC's void pointe
From: Roger Pau Monne
Signed-off-by: Roger Pau Monné
Signed-off-by: Anthony Liguori
Signed-off-by: Andrew Cooper
---
Changes since v1:
- Use __ of copy_to_guest.
- Return EOPNOTSUPP for not implemented grant table hypercalls.
- Forward user provided buffer in GNTTABOP_query_size.
- Rewrite
The timer calibration currently depends on PIT. Introduce a variant
to wait for a tick's worth of time to elapse when running as a PVH
guest.
Signed-off-by: Wei Liu
Reviewed-by: Jan Beulich
---
xen/arch/x86/apic.c | 38 ++
1 file changed, 30 insertions(+), 8
From: Sergey Dyasli
Signed-off-by: Sergey Dyasli
Signed-off-by: Andrew Cooper
Signed-off-by: Wei Liu
---
xen/drivers/char/Makefile | 1 +
xen/drivers/char/xen_pv_console.c | 205 ++
xen/include/asm-x86/fixmap.h | 1 +
xen/include/as
From: Roger Pau Monne
All guest shutdown operations are forwarded to L0, so the only native
calls to machine_restart happen from crash related paths inside the
hypervisor, hence switch the reboot code to instead issue a crash
shutdown.
Signed-off-by: Roger Pau Monné
Acked-by: Jan Beulich
[ wei
From: Roger Pau Monne
If available.
Signed-off-by: Roger Pau Monné
Reviewed-by: Jan Beulich
[ wei: fix non-shim build ]
Signed-off-by: Wei Liu
---
xen/arch/x86/guest/xen.c| 23 +++
xen/arch/x86/smpboot.c | 4
xen/include/asm-x86/guest/xen.h | 7 +++
From: Roger Pau Monne
Signed-off-by: Roger Pau Monné
---
Changes since v1:
- Add an order parameter to batch_memory_op.
- Add a TODO item regarding high order memory chunks to
pv_shim_online_memory.
- Use page_list_splice.
- Make sure the shim handlers are not called multiple times when
From: Andrew Cooper
Signed-off-by: Andrew Cooper
Signed-off-by: Wei Liu
---
v2: append underscores to tmp.
---
xen/arch/x86/guest/Makefile | 1 +
xen/arch/x86/guest/hypercall_page.S | 79 ++
xen/arch/x86/guest/xen.c | 5 ++
xen/arch/x86/xe
From: Andrew Cooper
This allows toolstack software to distinguish HVM from PVH guests.
Signed-off-by: Andrew Cooper
Signed-off-by: Wei Liu
Reviewed-by: Jan Beulich
---
v2: bump domctl version number
---
tools/libxc/include/xenctrl.h | 1 +
tools/libxc/xc_domain.c | 1 +
xen/arch/x86/do
From: Roger Pau Monne
Avoid scheduling vCPUs that are down, there's no point in assigning
them to a pCPU because they are not going to run anyway.
Since down vCPUs are not assigned to pCPUs after this change, force a
rescheduling when a vCPU is brought up if it's on the waitqueue. Also
when sch
From: Roger Pau Monne
On PVH there's nothing special on the low 1MB.
This is an optional patch that doesn't affect the functionality of the
shim.
Signed-off-by: Roger Pau Monné
Signed-off-by: Andrew Cooper
---
xen/arch/x86/mm.c | 9 +++--
1 file changed, 7 insertions(+), 2 deletions(-)
It is needed later for introducing PVH entry point.
Signed-off-by: Wei Liu
---
v2:
1. Specify section attribute and type.
2. Use p2align.
3. Align instructions.
4. Haven't used .L or turned it into assembly macro.
---
xen/include/asm-x86/asm_defns.h | 12
1 file changed, 12 insertio
From: Andrew Cooper
Signed-off-by: Andrew Cooper
---
tools/ocaml/libs/xc/xenctrl.ml | 29 +
tools/ocaml/libs/xc/xenctrl.mli | 28
tools/ocaml/libs/xc/xenctrl_stubs.c | 26 --
3 files changed, 81 insertions
This specifies whether to use Xen specific console output. There are
two variants: one is the hypervisor console, the other is the magic
debug port 0xe9.
Signed-off-by: Andrew Cooper
Signed-off-by: Wei Liu
---
xen/drivers/char/console.c| 46 +++
xen/i
From: Sergey Dyasli
Signed-off-by: Sergey Dyasli
Signed-off-by: Wei Liu
---
docs/misc/xen-command-line.markdown | 5 -
xen/arch/x86/guest/xen.c| 3 +++
xen/drivers/char/console.c | 16
3 files changed, 23 insertions(+), 1 deletion(-)
diff --git a/do
From: Roger Pau Monne
Since the shim VCPUOP_{up/down} hypercall is wired to the plug/unplug
of CPUs to the shim itself, start the shim DomU with only the BSP
online, and let the guest bring up other CPUs as it needs them.
Signed-off-by: Roger Pau Monné
---
Changes since v1:
- Fix single line c
From: Roger Pau Monne
Signed-off-by: Roger Pau Monné
---
Changes since v1:
- Use bitmap_zero instead of memset.
- Don't drop the __init attribute of unshare_xen_page_with_guest,
it's not needed for migration.
- Remove BUG_ON to check correct mapping, map_domain_page cannot
fail.
- Redu
From: Roger Pau Monne
When running a 32bit kernel as Dom0 on a 64bit hypervisor the
hypervisor will try to shrink the hypervisor hole to the minimum
needed, and thus requires the Dom0 to use XENMEM_machphys_mapping in
order to fetch the position of the start of the hypervisor virtual
mappings.
D
From: Andrew Cooper
Introduce two options. One to detect whether the binary is running on
Xen, the other enables PVH ABI support.
The former will be useful to PV in HVM approach. Both will be used by
PV in PVH approach.
Signed-off-by: Andrew Cooper
Signed-off-by: Wei Liu
---
v2:
Write commit
From: Roger Pau Monne
Through a Kconfig option. Enable it by default, and disable it for the
PV-in-PVH shim.
Signed-off-by: Roger Pau Monné
Reviewed-by: Jan Beulich
Signed-off-by: Wei Liu
---
tools/firmware/xen-dir/shim.config | 2 --
xen/arch/x86/Kconfig | 1 -
xen/arch/x86/bo
From: Andrew Cooper
TODO: Replace somehow (bootstrap_map() ?)
Signed-off-by: Andrew Cooper
---
xen/arch/x86/boot/x86_64.S | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/xen/arch/x86/boot/x86_64.S b/xen/arch/x86/boot/x86_64.S
index cf47e019f5..42636cf334 100644
--- a/xen/
From: Roger Pau Monne
This si required so that later they can be shared with the guest if
Xen is running in shim mode.
Also prevent them from being used by Xen by marking them as bad pages
in init_boot_pages.
Signed-off-by: Roger Pau Monné
Signed-off-by: Wei Liu
---
Changes since v1:
- Remov
Reserve a hole in a rangeset.
Signed-off-by: Roger Pau Monne
Signed-off-by: Wei Liu
---
Changes since v1:
- Change function name.
- Use a local variable instead of *s.
- Add unlikely to the !prev case.
- Move the function prototype position in the header file.
---
xen/common/rangeset.c
From: Roger Pau Monne
shim_mem will now account for both the memory used by the hypervisor
loaded in memory and the free memory slack given to the shim for
runtime usage.
From experimental testing it seems like the total amount of MiB used
by the shim (giving it ~1MB of free memory for runtime)
Produce a binary that can be booted as PVH. It doesn't do much yet.
Signed-off-by: Wei Liu
Signed-off-by: Andrew Cooper
---
v2:
1. Remove shim-y dependency.
2. Remove extraneous blank line.
3. Fix bugs in xen.lds.S.
4. Haven't split code into pvh.S because that will break later
patches.
---
From: Roger Pau Monne
Do not allow access to any iomem or ioport by the shim, and also
remove the check for Dom0 kernel support.
Signed-off-by: Roger Pau Monné
Acked-by: Jan Beulich
---
xen/arch/x86/dom0_build.c| 4
xen/arch/x86/pv/dom0_build.c | 3 ++-
2 files changed, 6 insertions(
From: Ian Jackson
This is API-compatible because old callers are supposed to call
libxl_*_init to initialise the struct; and the updated function clears
these members.
It is ABI-compatible because the new fields make this member of the
guest type union larger but only within the existing size of
From: Andrew Cooper
Link a minimum set of files to build the shim. The linkfarm rune can
handle creation and deletion of files. Introduce build-shim and
install-shim targets in xen/Makefile.
We can do better by properly generate the dependency from the list of
files but that's an improvement for
From: Roger Pau Monne
Mapping the per-vcpu vcpu_info area is required in order to use more
than XEN_LEGACY_MAX_VCPUS.
Signed-off-by: Roger Pau Monné
Signed-off-by: Wei Liu
---
Changes since v1:
- Make vcpu_info_mapped static.
- Add a BUG_ON in case VCPUOP_register_vcpu_info fails.
- Remove
From: Ian Jackson
If the config file specifies a type (or builder), it overrides this
default. But if it doesn't, you now get a PV-in-PVH guest.
Signed-off-by: Ian Jackson
---
v2: New patch
---
tools/xl/xl_parse.c | 13 ++---
1 file changed, 10 insertions(+), 3 deletions(-)
diff --gi
It is a variant of TSC clock source.
Signed-off-by: Wei Liu
Signed-off-by: Andrew Cooper
Signed-off-by: Roger Pau Monné
---
Changes since v1:
- Use the mapped vcpu_info.
---
xen/arch/x86/time.c | 89 +
1 file changed, 89 insertions(+)
diff
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA256
Xen Security Advisory CVE-2017-5753,CVE-2017-5715,CVE-2017-5754 / XSA-254
version 5
Information leak via side effects of speculative execution
UPDATES IN VERSION 5
PV-in-PVH/HVM shim a
Signed-off-by: Ross Lagerwall
Acked-by: Ian Jackson
Reviewed-by: Paul Durrant
---
Changed in v3:
* Match width of size with updated hypervisor interface.
* Match description with the one for the hypervisor interface.
Changed in v2:
* Make it operate on a range.
tools/libs/devicemodel/Makefil
The recently added support for restricting QEMU prevents use of the VGA
console. This series addresses that by adding a couple of new dmops.
A corresponding patch for QEMU is needed to make use of the new dmops.
Changes in v3:
* Address Jan's comments - primarily adding a new patch to remove the
Provide XEN_DMOP_add_to_physmap, a limited version of
XENMEM_add_to_physmap to allow a deprivileged QEMU to move VRAM when a
guest programs its BAR. It is equivalent to XENMEM_add_to_physmap with
space == XENMAPSPACE_gmfn_range.
Signed-off-by: Ross Lagerwall
---
Changed in v3:
* Renamed idx -> s
Signed-off-by: Ross Lagerwall
Acked-by: Ian Jackson
Reviewed-by: Paul Durrant
---
tools/libs/devicemodel/core.c | 19 +++
tools/libs/devicemodel/include/xendevicemodel.h | 14 ++
tools/libs/devicemodel/libxendevicemodel.map| 1 +
3 files change
Make it global in preparation to be called by a new dmop.
Signed-off-by: Ross Lagerwall
Reviewed-by: Paul Durrant
Acked-by: Jan Beulich
---
xen/common/memory.c | 5 ++---
xen/include/xen/mm.h | 3 +++
2 files changed, 5 insertions(+), 3 deletions(-)
diff --git a/xen/common/memory.c b/xen/com
Remove the implementation of XEN_DOMCTL_pin_mem_cacheattr since it has
been replaced by a dmop. Change xc_domain_pin_memory_cacheattr() so
that it is only defined when XC_WANT_COMPAT_DEVICEMODEL_API is set and
have it call the new dmop. Leave the definitions of
XEN_DOMCTL_MEM_CACHEATTR_* since the
Provide XEN_DMOP_pin_memory_cacheattr to allow a deprivileged QEMU to
pin the caching type of RAM after moving the VRAM. It is equivalent to
XEN_DOMCTL_pin_memory_cacheattr.
Signed-off-by: Ross Lagerwall
Reviewed-by: Paul Durrant
Reviewed-by: Jan Beulich
---
Changed in v2:
* Check pad is 0.
It seems the list of missing features of vixen does not cover the lack
of framebuffer support. 'xl create -Vf PV.cfg' would show the guest
console in the VNC window. With vixen this can not work because the vfb
code triggers only for PV guests.
Is that missing feature on anyones radar already? At
>>> On 09.01.18 at 20:43, wrote:
> When I compiled the snippet on x86 and Arm, no relocation is available
> for the pointers to string in the array in the final binary. Yet they
> are available in the object.
I can see them there in the binary I look at. I use my own tool
for dumping, so the ou
Hi all,
Two solutions are proposed to mitigate Meltdown. One is called Vixen and the
other is called Comet. The long term goal is to merge the two implementations
to one.
Here I list the differences between the two implementations.
Vixen Comet
Boot
>>> On 12.01.18 at 14:24, wrote:
> Here I list the differences between the two implementations.
Thanks for the summary.
> Vixen Comet
> Boot mode HVMPVH + HVM
> Kconfig options XEN_GUEST
On Fri, Jan 12, 2018 at 06:57:09AM -0700, Jan Beulich wrote:
> >>> On 12.01.18 at 14:24, wrote:
> > Here I list the differences between the two implementations.
>
> Thanks for the summary.
>
> > Vixen Comet
> > Boot mode HVM
On Fri, Jan 12, Wei Liu wrote:
> Vixen Comet
> Guest console Output onlyBi-directional
With the proper patch input works for Vixen. Unless this item mean
something else.
Olaf
signature.asc
Description: PGP signature
___
On Fri, Jan 12, 2018 at 01:24:09PM +, Wei Liu wrote:
> Hi all,
>
> Two solutions are proposed to mitigate Meltdown. One is called Vixen and the
> other is called Comet. The long term goal is to merge the two implementations
> to one.
>
> Here I list the differences between the two implementat
On Fri, Jan 12, 2018 at 03:17:04PM +0100, Olaf Hering wrote:
> On Fri, Jan 12, Wei Liu wrote:
>
> > Vixen Comet
> > Guest console Output onlyBi-directional
>
> With the proper patch input works for Vixen. Unless this item
flight 117924 xen-unstable-smoke real [real]
http://logs.test-lab.xenproject.org/osstest/logs/117924/
Failures :-/ but no regressions.
Tests which did not succeed, but are not blocking:
test-amd64-amd64-libvirt 13 migrate-support-checkfail never pass
test-arm64-arm64-xl-xsm 1
On Fri, Jan 12, 2018 at 02:18:33PM +, Roger Pau Monné wrote:
> On Fri, Jan 12, 2018 at 01:24:09PM +, Wei Liu wrote:
> > Hi all,
> >
> > Two solutions are proposed to mitigate Meltdown. One is called Vixen and the
> > other is called Comet. The long term goal is to merge the two
> > implem
Earlier versions of this patch have an erroneous hunk which will stop
PV guests from working at all!
Signed-off-by: Ian Jackson
CC: Wei Liu
---
tools/libxl/libxl_create.c | 4
1 file changed, 4 insertions(+)
diff --git a/tools/libxl/libxl_create.c b/tools/libxl/libxl_create.c
index 278ad6
Earlier versions of this patch have an erroneous hunk which will stop
PV guests from working at all!
Signed-off-by: Ian Jackson
CC: Wei Liu
---
tools/libxl/libxl_create.c | 4
1 file changed, 4 insertions(+)
diff --git a/tools/libxl/libxl_create.c b/tools/libxl/libxl_create.c
index 278ad6
flight 117814 qemu-upstream-unstable real [real]
http://logs.test-lab.xenproject.org/osstest/logs/117814/
Failures :-/ but no regressions.
Tests which are failing intermittently (not blocking):
test-amd64-amd64-xl-qemuu-debianhvm-amd64 16 guest-localmigrate/x10 fail in
117763 pass in 117814
te
On Fri, Jan 12, 2018 at 10:19 AM, Jan Beulich wrote:
> This is a very simplistic change limiting the amount of memory a running
> 64-bit PV guest has mapped (and hence available for attacking): Only the
> mappings of stack, IDT, and TSS are being cloned from the direct map
> into per-CPU page tabl
1 - 100 of 166 matches
Mail list logo
