On 22/11/17 15:48, Jan Beulich wrote:
On 22.11.17 at 15:40, wrote:
>> On 22/11/17 15:05, Jan Beulich wrote:
>>> Jürgen, Boris,
>>>
>>> am I trying something that's not allowed, but selectable via Kconfig?
>>> On system with multiple IO-APICs (I assume that's what triggers the
>>> problem) I g
Add early interrupt handlers activated by idt_setup_early_handler() to
the handlers supported by Xen pv guests. This will allow for early
WARN() calls not crashing the guest.
Suggested-by: Andy Lutomirski
Signed-off-by: Juergen Gross
---
arch/x86/include/asm/segment.h | 12
arch
Sorry, Andy, forgot to Cc: you...
On 24/11/17 09:42, Juergen Gross wrote:
> Add early interrupt handlers activated by idt_setup_early_handler() to
> the handlers supported by Xen pv guests. This will allow for early
> WARN() calls not crashing the guest.
>
> Suggested-by:
On 27/11/17 05:03, Andy Lutomirski wrote:
> On Sun, Nov 26, 2017 at 9:10 AM, Boris Ostrovsky
> wrote:
>> Andy,
>>
>> (Can't find the original patch in my mailbox)
>>
>> This hunk from 1d3e53e8624a ("x86/entry/64: Refactor IRQ stacks and make
>> them NMI-safe")
>>
>>
>> diff --git a/arch/x86/entry/
laying the warnings on dmesg.
>
> The trick here is to make netfront to wait until netback frees all the g.e.'s
> and only then continue to cleanup for the module removal, and this is done by
> manipulating both device states.
>
> Signed-off-by: Eduardo Otubo
Acked-by: Juer
On 27/11/17 19:05, Boris Ostrovsky wrote:
> Commit 1d3e53e8624a ("x86/entry/64: Refactor IRQ stacks and make
> them NMI-safe") added DEBUG_ENTRY_ASSERT_IRQS_OFF macro that acceses
> eflags using 'pushfq' instruction when testing for IF bit. On PV Xen
> guests looking at IF flag directly will always
the RSDP address. Being zero means it isn't specified and
has to be located the legacy way (searching through low memory or
EBDA).
Signed-off-by: Juergen Gross
---
Documentation/x86/boot.txt| 19 +++
arch/x86/boot/header.S| 6 +-
arch/x86/in
In case the rsdp address in struct boot_params is specified don't try
to find the table by searching, but take the address directly as set
by the boot loader.
Signed-off-by: Juergen Gross
---
drivers/acpi/osl.c | 8
1 file changed, 8 insertions(+)
diff --git a/drivers/acpi/os
RSDP address being specified by grub2 (which in
turn got the address via the start of day information block from Xen).
Juergen Gross (3):
x86/boot: add acpi rsdp address to setup_header
x86/acpi: take rsdp address for boot params if available
x86/xen: supply rsdp address in boot params for pvh
When booted via the special PVH entry save the RSDP address set in the
boot information block in struct boot_params. This will enable Xen to
locate the RSDP at an arbitrary address.
Signed-off-by: Juergen Gross
---
arch/x86/xen/enlighten_pvh.c | 2 ++
1 file changed, 2 insertions(+)
diff --git
On 28/11/17 11:18, Roger Pau Monné wrote:
> On Tue, Nov 28, 2017 at 10:43:59AM +0100, Juergen Gross wrote:
>> In case the rsdp address in struct boot_params is specified don't try
>> to find the table by searching, but take the address directly as set
>> by the boot l
On 28/11/17 11:17, Roger Pau Monné wrote:
> On Tue, Nov 28, 2017 at 10:44:00AM +0100, Juergen Gross wrote:
>> When booted via the special PVH entry save the RSDP address set in the
>> boot information block in struct boot_params. This will enable Xen to
>> locate the RSDP at
looking at IF flag directly will always see it set, resulting
> in 'ud2'.
>
> Introduce SAVE_FLAGS() macro that will use appropriate save_fl pv op
> when running paravirt.
>
> Signed-off-by: Boris Ostrovsky
Reviewed-by: Juergen Gross
Juergen
On 28/11/17 22:03, Rafael J. Wysocki wrote:
> On Tue, Nov 28, 2017 at 10:43 AM, Juergen Gross wrote:
>> In the non-EFI boot path the ACPI RSDP table is currently found via
>> either EBDA or by searching through low memory for the RSDP magic.
>> This requires the RSDP to be
On 28/11/17 20:34, Maran Wilson wrote:
> For certain applications it is desirable to rapidly boot a KVM virtual
> machine. In cases where legacy hardware and software support within the
> guest is not needed, Qemu should be able to boot directly into the
> uncompressed Linux kernel binary without t
Xen PVH guests will have the RSDP at an arbitrary address. Support that
by passing the RSDP address via the boot parameters to Linux.
Signed-off-by: Juergen Gross
---
grub-core/loader/i386/linux.c | 6 ++
include/grub/i386/linux.h | 4 +++-
2 files changed, 9 insertions(+), 1 deletion
loader is to pass the
ACPI RSDP address via boot parameters to the kernel, as that table
might not be located at the usual physical address just below 1MB.
As the related Linux kernel patches are not yet accepted please
wait for this to happen before applying the series.
Juergen Gross (8):
xen
Support platform i386/xenpvh in configure.
Signed-off-by: Juergen Gross
---
configure.ac | 3 +++
1 file changed, 3 insertions(+)
diff --git a/configure.ac b/configure.ac
index c7888e40f..d987d3379 100644
--- a/configure.ac
+++ b/configure.ac
@@ -147,6 +147,7 @@ case "$target_cpu"-
Add xenpvh support to grub-install.
Signed-off-by: Juergen Gross
---
include/grub/util/install.h | 1 +
util/grub-install-common.c | 1 +
util/grub-install.c | 7 +++
3 files changed, 9 insertions(+)
diff --git a/include/grub/util/install.h b/include/grub/util/install.h
index
In order to support grub2 in Xen PVH environment some additional Xen
headers are needed. Add them.
Signed-off-by: Juergen Gross
---
include/xen/hvm/hvm_op.h | 296 +++
include/xen/hvm/params.h | 284 ++
include/xen/hvm/start_info.h | 98 +++
include
Suppor mkimage for xenpvh.
Signed-off-by: Juergen Gross
---
include/grub/util/mkimage.h | 3 ++-
util/grub-mkimage32.c | 1 +
util/grub-mkimage64.c | 1 +
util/grub-mkimagexx.c | 44
util/mkimage.c | 23
Initialize the grant tab in a dedicated function. This will enable
using it for PVH guests, too.
Signed-off-by: Juergen Gross
---
grub-core/kern/xen/init.c | 35 +--
1 file changed, 21 insertions(+), 14 deletions(-)
diff --git a/grub-core/kern/xen/init.c b/grub
Add the modifications to the build system needed to build a xenpvh
grub.
Signed-off-by: Juergen Gross
---
gentpl.py | 4 ++--
grub-core/Makefile.am | 12
grub-core/Makefile.core.def | 35 +++
3 files changed, 49 insertions
PVH
Enabling all this code is done later.
Signed-off-by: Juergen Gross
---
grub-core/kern/i386/tsc.c | 2 +-
grub-core/kern/i386/xen/pvh.c | 344 ++
grub-core/kern/i386/xen/startup_pvh.S | 80
grub-core/kern/xen/init.c
On 29/11/17 15:03, Boris Ostrovsky wrote:
> On 11/29/2017 03:50 AM, Roger Pau Monné wrote:
>> On Wed, Nov 29, 2017 at 09:21:59AM +0100, Juergen Gross wrote:
>>> On 28/11/17 20:34, Maran Wilson wrote:
>>>> For certain applications it is desirable to rapidly boot a KVM
Instead of locating the RSDP table below 1MB put it just below 4GB
like the rest of the ACPI tables in case of PVH guests. This will
avoid punching more holes than necessary into the memory map.
Signed-off-by: Juergen Gross
---
tools/libxc/xc_dom_hvmloader.c | 2 +-
tools/libxl/libxl_x86_acpi.c
On 29/11/17 15:25, Jan Beulich wrote:
On 29.11.17 at 15:13, wrote:
>> --- a/tools/libxl/libxl_x86_acpi.c
>> +++ b/tools/libxl/libxl_x86_acpi.c
>> @@ -23,7 +23,6 @@
>> /* Number of pages holding ACPI tables */
>> #define NUM_ACPI_PAGES 16
>> /* Store RSDP in the last 64 bytes of BIOS RO me
On 29/11/17 15:44, Paolo Bonzini wrote:
> On 29/11/2017 15:25, Boris Ostrovsky wrote:
> zeropage is x86/Linux-specific so we'd need some sort of firmware (like
> grub) between a hypervisor and Linux to convert hvm_start_info to
> bootparams.
qemu?
>>
>> I think KVM folks didn't wan
On 30/11/17 22:03, Daniel Kiper wrote:
> On Wed, Nov 29, 2017 at 02:46:42PM +0100, Juergen Gross wrote:
>> This patch series adds support for booting Linux as PVH guest.
>>
>> Similar to i386/xen and x86_64/xen platforms the new i386/xenpvh
>> platform grub is booted as
Instead of locating the RSDP table below 1MB put it just below 4GB
like the rest of the ACPI tables in case of PVH guests. This will
avoid punching more holes than necessary into the memory map.
Signed-off-by: Juergen Gross
Acked-by: Wei Liu
---
tools/libxc/xc_dom_hvmloader.c | 2 +-
tools
On 21/11/17 12:06, Juergen Gross wrote:
> The "special pages" for PVH guests include the frames for console and
> Xenstore ring buffers. Those have to be marked as "Reserved" in the
> guest's E820 map, as otherwise conflicts might arise later e.g. when
&
> Cc: jgr...@suse.com
> Cc: xen-devel@lists.xenproject.org
> Cc: l...@kernel.org
> Link:
> https://lkml.kernel.org/r/1512159805-6314-1-git-send-email-boris.ostrov...@oracle.com
Reviewed-by: Juergen Gross
Juergen
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On 05/12/17 16:23, Julien Grall wrote:
> Hi Juergen,
>
> On 04/12/17 15:49, Juergen Gross wrote:
>> On 21/11/17 12:06, Juergen Gross wrote:
>>> The "special pages" for PVH guests include the frames for console and
>>> Xenstore ring buffers. Those have to
ect to the backend")
> Signed-off-by: Dan Carpenter
Reviewed-by: Juergen Gross
Juergen
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On 05/12/17 15:38, Dan Carpenter wrote:
> Smatch complains that "len" is uninitialized if xenbus_read() fails so
> let's add some error handling.
>
> Signed-off-by: Dan Carpenter
Reviewed-by: Juergen Gross
Juergen
___
On 06/12/17 10:53, Julien Grall wrote:
> Hi Juergen,
>
> On 12/05/2017 04:19 PM, Juergen Gross wrote:
>> On 05/12/17 16:23, Julien Grall wrote:
>>> Hi Juergen,
>>>
>>> On 04/12/17 15:49, Juergen Gross wrote:
>>>> On 21/11/17 12:06, Juergen
On 06/12/17 12:50, Julien Grall wrote:
> Hi,
>
> On 12/06/2017 11:47 AM, Roger Pau Monné wrote:
>> On Wed, Dec 06, 2017 at 12:22:00PM +0100, Juergen Gross wrote:
>>> On 06/12/17 10:53, Julien Grall wrote:
>>>> Hi Juergen,
>>>>
>>>> On 12
In case the rsdp address in struct boot_params is specified don't try
to find the table by searching, but take the address directly as set
by the boot loader.
Signed-off-by: Juergen Gross
---
drivers/acpi/osl.c | 8
1 file changed, 8 insertions(+)
diff --git a/drivers/acpi/os
RSDP address being specified by grub2 (which in
turn got the address via the start of day information block from Xen).
Juergen Gross (3):
x86/boot: add acpi rsdp address to setup_header
x86/acpi: take rsdp address for boot params if available
x86/xen: supply rsdp address in boot params for pvh
the RSDP address. Being zero means it isn't specified and
has to be located the legacy way (searching through low memory or
EBDA).
Signed-off-by: Juergen Gross
Reviewed-by: Roger Pau Monné
---
Documentation/x86/boot.txt| 19 +++
arch/x86/boot/hea
-by: Juergen Gross
---
V2: set bootloader version to 2.14 (Roger Pau Monné)
---
arch/x86/xen/enlighten_pvh.c | 5 -
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/arch/x86/xen/enlighten_pvh.c b/arch/x86/xen/enlighten_pvh.c
index 436c4f003e17..036e3a5f284a 100644
--- a/arch/x86/xen
On 08/12/17 08:05, Ingo Molnar wrote:
>
> * Juergen Gross wrote:
>
>> In case the rsdp address in struct boot_params is specified don't try
>> to find the table by searching, but take the address directly as set
>> by the boot loader.
>>
>> Signed-of
On 08/12/17 08:16, Ingo Molnar wrote:
>
> * Juergen Gross wrote:
>
>> Xen PVH guests receive the address of the RSDP table from Xen. In order
>> to support booting a Xen PVH guest via grub2 using the standard x86
>> boot entry we need a way fro grub2 to pass the RS
On 08/12/17 08:22, Ingo Molnar wrote:
>
> * Juergen Gross wrote:
>
>> When booted via the special PVH entry save the RSDP address set in the
>> boot information block in struct boot_params. This will enable Xen to
>> locate the RSDP at an arbitrary address.
>>
On 08/12/17 09:48, Ingo Molnar wrote:
>
> * Juergen Gross wrote:
>
>>>> +Offset/size: 0x268/8
>>>> +Protocol: 2.14+
>>>> +
>>>> + This field can be set by the boot loader to tell the kernel the
>>>> + physical addr
Linus,
Please git pull the following tag:
git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip.git
for-linus-4.15-rc3-tag
xen: fixes for 4.15-rc3
Those are just two small fixes for the nev pvcalls frontend driver.
Thanks.
Juergen
drivers/xen/pvcalls-front.c | 4 +++-
1 file changed, 3 in
On 08/12/17 08:05, Ingo Molnar wrote:
>
> * Juergen Gross wrote:
...
> acpi_physical_address acpi_arch_get_root_pointer(void)
> {
> return boot_params.hdr.acpi_rsdp_addr;
> }
>
> 4)
>
> Add this to arch/x86/include/asm/acpi.h:
>
On 08/12/17 12:26, Ingo Molnar wrote:
>
> * Juergen Gross wrote:
>
>> On 08/12/17 08:05, Ingo Molnar wrote:
>>>
>>> * Juergen Gross wrote:
>>
>> ...
>>
>>> acpi_physical_address acpi_arch_get_root_pointer(void)
>>> {
>&g
hypervisor's responsibility anyway, so
> makes no sense to be used when running on Xen. Uniformly report a more
> modern version; this shouldn't matter much as both LAPIC and IO-APIC are
> being managed entirely / mostly by the hypervisor.
>
> Signed-off-by: Jan Beulich
# 4.12
Signed-off-by: Juergen Gross
---
arch/x86/xen/enlighten_pvh.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/xen/enlighten_pvh.c b/arch/x86/xen/enlighten_pvh.c
index 436c4f003e17..6e6430cb5e3f 100644
--- a/arch/x86/xen/enlighten_pvh.c
+++ b/arch/x86/xen/enlighten
the RSDP address. Being zero means it isn't specified and
has to be located the legacy way (searching through low memory or
EBDA).
While documenting the new setup_header layout and protocol version
2.14 add the missing documentation of protocol version 2.13.
Signed-off-by: Juergen Gross
Review
-by: Juergen Gross
---
V2: set bootloader version to 2.14 (Roger Pau Monné)
---
arch/x86/xen/enlighten_pvh.c | 5 -
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/arch/x86/xen/enlighten_pvh.c b/arch/x86/xen/enlighten_pvh.c
index 6e6430cb5e3f..e85e6dafe4bc 100644
--- a/arch/x86/xen
RSDP address being specified by grub2 (which in
turn got the address via the start of day information block from Xen).
Juergen Gross (4):
x86/boot: add acpi rsdp address to setup_header
x86/acpi: take rsdp address for boot params if available
x86/xen: fix boot loader version reported for pvh
In case the rsdp address in struct boot_params is specified don't try
to find the table by searching, but take the address directly as set
by the boot loader.
Signed-off-by: Juergen Gross
---
V3: use a generic retrieval function with a __weak annotated default
function (Ingo M
On 11/12/17 11:09, Jan Beulich wrote:
On 08.12.17 at 16:11, wrote:
>> Set the boot loader version to 2.14 (0x020e) replacing the wrong 0x0212
>> which should have been 0x020c.
>
> This part of the description has become partly stale now with the
> new patch 3.
Indeed. I'll wait for other co
On 11/12/17 21:42, Pravin Shedge wrote:
> These duplicate includes have been found with scripts/checkincludes.pl but
> they have been removed manually to avoid removing false positives.
>
> Signed-off-by: Pravin Shedge
Reviewed-by: Juergen Gros
On 12/12/17 11:18, Jan Beulich wrote:
> Add a respective dependency.
>
> Signed-off-by: Jan Beulich
Reviewed-by: Juergen Gross
Juergen
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On 12/12/17 11:48, Jan Beulich wrote:
On 12.12.17 at 11:38, wrote:
>> * Jan Beulich wrote:
>>> --- 4.15-rc3/arch/x86/xen/mmu_pv.c
>>> +++ 4.15-rc3-x86_64-Xen-avoid-W+X/arch/x86/xen/mmu_pv.c
>>> @@ -1902,6 +1902,16 @@ void __init xen_setup_kernel_pagetable(p
>>> /* Graft it onto L4[511][5
by committing to a release date before the exact code to be released
> is known and has been made and tested.
>
> Evidently our docs makes it insufficiently clear not to do that.
>
> CC: Lars Kurth
> CC: Julien Grall
> CC: Juergen Gross
> Signed-off-by: Ian Jacks
Hi all,
with 4.10 more or less finished it is time to plan for the next release
4.11. Since 4.7 we are using a 6 month release cycle [1] targeting to
release in June and December.
While this worked reasonably well for 4.7, 4.8 and 4.9 we had some
difficulties with 4.10: bad luck with security pat
On 14/12/17 12:19, Daniel Kiper wrote:
> On Fri, Dec 01, 2017 at 12:12:50PM +0100, Daniel Kiper wrote:
>> On Fri, Dec 01, 2017 at 06:37:37AM +0100, Juergen Gross wrote:
>>> On 30/11/17 22:03, Daniel Kiper wrote:
>>>> On Wed, Nov 29, 2017 at 02:46:42PM +0100, Juergen
On 14/12/17 12:28, Julien Grall wrote:
>
>
> On 14/12/17 07:56, Juergen Gross wrote:
>> Hi all,
>
> Hi Juergen,
>
> I would recommend to CC committers on that thread, so your thread don't
> get lost in the xen-devel meanders :).
>
>> with 4.10 more
On 14/12/17 12:32, Daniel Kiper wrote:
> On Thu, Dec 14, 2017 at 12:26:02PM +0100, Juergen Gross wrote:
>> On 14/12/17 12:19, Daniel Kiper wrote:
>>> On Fri, Dec 01, 2017 at 12:12:50PM +0100, Daniel Kiper wrote:
>>>> On Fri, Dec 01, 2017 at 06:37:37AM +0100, Juergen
On 14/12/17 13:43, Julien Grall wrote:
>
>
> On 14/12/17 11:38, Juergen Gross wrote:
>> On 14/12/17 12:28, Julien Grall wrote:
>>>
>>>
>>> On 14/12/17 07:56, Juergen Gross wrote:
>>>> Hi all,
>>>
>>> Hi Juergen,
>>
ags(*start);
> - note_page(m, st, __pgprot(prot), 4);
> + note_page(m, st, __pgprot(prot), eff, 4);
> } else if (!kasan_page_table(m, st, pmd_start)) {
> - walk_pte_level(m, st, *start,
> + walk_pte_level(m, st, *start, eff,
> P + i * PMD_LEVEL_MULT);
> }
You can drop the braces for both cases. Applies to similar
constructs below, too.
With that fixed you can add my:
Reviewed-by: Juergen Gross
Juergen
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} else if (!kasan_page_table(m, st, pmd_start)) {
>>> - walk_pte_level(m, st, *start,
>>> + walk_pte_level(m, st, *start, eff,
>>>P + i * PMD_LEVEL_MULT);
>>>
Committers,
as 4.10 has been released, feel free to commit patches again.
Juergen
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Linus,
Please git pull the following tag:
git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip.git
for-linus-4.15-rc4-tag
xen: fixes for 4.15-rc4
It contains two minor fixes for running as Xen dom0:
- when built as 32 bit kernel on large machines the Xen LAPIC emulation
should report a rat
On 12/12/17 23:51, Boris Ostrovsky wrote:
> Commit f5775e0b6116 ("x86/xen: discard RAM regions above the maximum
> reservation") left host memory not assigned to dom0 as available for
> memory hotplug.
>
> Unfortunately this also meant that those regions could be used by
> others. Specifically, co
On 15/12/17 15:24, Boris Ostrovsky wrote:
>
>>> +
>>> + hostmem_resource->start = max_addr;
>>> + hostmem_resource->end = entry->addr + entry->size;
>>> + for (; i < memmap.nr_entries; i++) {
>>> + entry = &xen_e820_table->entries[i];
>>> + if (entry->type == E820_TYPE_RA
On 14/12/17 14:13, Juergen Gross wrote:
> On 14/12/17 13:43, Julien Grall wrote:
>>
>>
>> On 14/12/17 11:38, Juergen Gross wrote:
>>> On 14/12/17 12:28, Julien Grall wrote:
>>>>
>>>>
>>>> On 14/12/17 07:56, Juergen Gross wrote:
>
On 15/12/17 15:58, Boris Ostrovsky wrote:
> On 12/15/2017 09:47 AM, Juergen Gross wrote:
>> On 15/12/17 15:24, Boris Ostrovsky wrote:
>>>>> +
>>>>> + hostmem_resource->start = max_addr;
>>>>> + hostmem_resource->end = entry-
On 13/12/17 00:42, Maran Wilson wrote:
> For certain applications it is desirable to rapidly boot a KVM virtual
> machine. In cases where legacy hardware and software support within the
> guest is not needed, Qemu should be able to boot directly into the
> uncompressed Linux kernel binary without t
On 01.09.19 21:28, Souptick Joarder wrote:
Rather than using static int max_dma_bits, this
can be coverted to use as macro.
Signed-off-by: Souptick Joarder
s/zen/xen/ in the patch title, other than that:
Reviewed-by: Juergen Gross
Juergen
On 02.09.19 13:06, Jan Beulich wrote:
On 27.08.2019 14:40, Juergen Gross wrote:
On 27.08.19 14:37, Andrew Cooper wrote:
On 27/08/2019 11:59, Juergen Gross wrote:
+static void *
+sched_idle_alloc_vdata(const struct scheduler *ops, struct vcpu *v,
+ void *dd
header
add a common macro for that purpose in xen.h.
This at once corrects most of the definitions which miss one case
leading to not defining the array at all.
Signed-off-by: Juergen Gross
---
V2:
- rename macro (Jan Beulich)
---
xen/include/public/arch-x86/hvm/save.h | 8 +---
xen/include
The Makefile below tools/libs have a lot in common. Put those common
parts into a new libs.mk and include that from the specific Makefiles.
Signed-off-by: Juergen Gross
---
tools/libs/call/Makefile | 86 ++-
tools/libs/devicemodel/Makefile | 88
On 03.09.19 12:00, Jan Beulich wrote:
On 28.08.2019 10:00, Juergen Gross wrote:
Today dumping the debugtrace buffers is done via sercon_puts(), while
direct printing of trace entries (after toggling output to the console)
is using serial_puts().
Use sercon_puts() in both cases, as the
On 03.09.19 12:16, Jan Beulich wrote:
On 28.08.2019 10:00, Juergen Gross wrote:
As a preparation for per-cpu buffers do a little refactoring of the
debugtrace data: put the needed buffer admin data into the buffer as
it will be needed for each buffer.
While at it switch
On 03.09.19 12:51, Jan Beulich wrote:
On 28.08.2019 10:00, Juergen Gross wrote:
@@ -24,32 +25,62 @@ struct debugtrace_data_s {
};
static struct debugtrace_data_s *debtr_data;
+static DEFINE_PER_CPU(struct debugtrace_data_s *, debtr_cpu_data);
-static unsigned int debugtrace_kilobytes
On 02.09.19 17:57, Christoph Hellwig wrote:
On Fri, Aug 30, 2019 at 07:40:42PM -0700, Stefano Stabellini wrote:
+ Juergen, Boris
On Fri, 30 Aug 2019, Christoph Hellwig wrote:
Can we take a step back and figure out what we want to do here?
AFAICS this function allocates memory for the swiotlb-
On 03.09.19 13:47, Jan Beulich wrote:
On 03.09.2019 12:22, Juergen Gross wrote:
On 03.09.19 12:00, Jan Beulich wrote:
On 28.08.2019 10:00, Juergen Gross wrote:
Today dumping the debugtrace buffers is done via sercon_puts(), while
direct printing of trace entries (after toggling output to the
On 03.09.19 14:01, Jan Beulich wrote:
On 03.09.2019 13:10, Juergen Gross wrote:
On 03.09.19 12:51, Jan Beulich wrote:
On 28.08.2019 10:00, Juergen Gross wrote:
+static void debugtrace_dump_buffer(struct debugtrace_data_s *data,
+ const char *which
On 03.09.19 14:09, Jan Beulich wrote:
On 03.09.2019 13:58, Juergen Gross wrote:
On 03.09.19 13:47, Jan Beulich wrote:
On 03.09.2019 12:22, Juergen Gross wrote:
On 03.09.19 12:00, Jan Beulich wrote:
On 28.08.2019 10:00, Juergen Gross wrote:
Today dumping the debugtrace buffers is done via
On 03.09.19 13:50, Jan Beulich wrote:
On 03.09.2019 12:31, Juergen Gross wrote:
On 03.09.19 12:16, Jan Beulich wrote:
On 28.08.2019 10:00, Juergen Gross wrote:
+static unsigned int debugtrace_kilobytes = 128;
Since you touch this anyway, add __initdata? Maybe also move it
next to its
On 03.09.19 16:11, Jan Beulich wrote:
On 29.08.2019 12:18, Juergen Gross wrote:
--- a/xen/include/xen/spinlock.h
+++ b/xen/include/xen/spinlock.h
@@ -6,14 +6,21 @@
#include
#ifndef NDEBUG
-struct lock_debug {
-s16 irq_safe; /* +1: IRQ-safe; 0: not IRQ-safe; -1: don't kno
On 03.09.19 16:22, Jan Beulich wrote:
On 29.08.2019 12:18, Juergen Gross wrote:
V2:
- rename CONFIG_LOCK_PROFILE to CONFIG_DEBUG_LOCK_PROFILE (Jan Beulich)
- move .lockprofile.data section to init area in linker scripts
How can this be correct, when you don't change lock_prof_init() a
On 03.09.19 16:53, Jan Beulich wrote:
On 29.08.2019 12:18, Juergen Gross wrote:
In order to have unique names when doing lock profiling several local
locks "lock" need to be renamed.
But these are all named simply "lock" for a good reason, including
because they're a
On 03.09.19 17:09, Jan Beulich wrote:
On 03.09.2019 17:03, Juergen Gross wrote:
On 03.09.19 16:53, Jan Beulich wrote:
On 29.08.2019 12:18, Juergen Gross wrote:
In order to have unique names when doing lock profiling several local
locks "lock" need to be renamed.
But these are
On 03.09.19 17:09, Jan Beulich wrote:
On 03.09.2019 17:03, Juergen Gross wrote:
On 03.09.19 16:53, Jan Beulich wrote:
On 29.08.2019 12:18, Juergen Gross wrote:
In order to have unique names when doing lock profiling several local
locks "lock" need to be renamed.
But these are
On 03.09.19 16:46, Jan Beulich wrote:
On 29.08.2019 12:18, Juergen Gross wrote:
Today adding locks located in a struct to lock profiling requires a
unique type index for each structure. This makes it hard to add any
new structure as the related sysctl interface needs to be changed, too
On 04.09.19 10:40, Jan Beulich wrote:
On 04.09.2019 10:25, Juergen Gross wrote:
On 03.09.19 17:09, Jan Beulich wrote:
On 03.09.2019 17:03, Juergen Gross wrote:
On 03.09.19 16:53, Jan Beulich wrote:
On 29.08.2019 12:18, Juergen Gross wrote:
In order to have unique names when doing lock
On 04.09.19 10:58, Andrew Cooper wrote:
On 04/09/2019 09:40, Jan Beulich wrote:
On 04.09.2019 10:25, Juergen Gross wrote:
On 03.09.19 17:09, Jan Beulich wrote:
On 03.09.2019 17:03, Juergen Gross wrote:
On 03.09.19 16:53, Jan Beulich wrote:
On 29.08.2019 12:18, Juergen Gross wrote:
In order
On 04.09.19 11:15, Andrew Cooper wrote:
On 04/09/2019 10:11, Juergen Gross wrote:
On 04.09.19 10:58, Andrew Cooper wrote:
On 04/09/2019 09:40, Jan Beulich wrote:
On 04.09.2019 10:25, Juergen Gross wrote:
On 03.09.19 17:09, Jan Beulich wrote:
On 03.09.2019 17:03, Juergen Gross wrote:
On
On 04.09.19 10:51, Jan Beulich wrote:
On 04.09.2019 10:47, Juergen Gross wrote:
On 04.09.19 10:40, Jan Beulich wrote:
On 04.09.2019 10:25, Juergen Gross wrote:
On 03.09.19 17:09, Jan Beulich wrote:
On 03.09.2019 17:03, Juergen Gross wrote:
On 03.09.19 16:53, Jan Beulich wrote:
On
patch 1 (preparing the move of debugtrace coding)
- patch 4 (v1 patch 3): avoid leaking buffer
Juergen Gross (4):
xen: fix debugtrace clearing
xen: move debugtrace coding to common/debugtrace.c
xen: refactor debugtrace data
xen: add per-cpu buffer option to debugtrace
docs/misc/xen
unction to accept size modifiers
(e.g. 4M or 1G).
Printing out the trace entries is done for each buffer in order to
minimize the effort needed during printing. As each entry is prefixed
with its sequence number sorting the entries can easily be done when
analyzing them.
Signed-off-by: Juergen Gro
As a preparation for per-cpu buffers do a little refactoring of the
debugtrace data: put the needed buffer admin data into the buffer as
it will be needed for each buffer.
While at it switch debugtrace_send_to_console and debugtrace_used to
bool and delete an empty line.
Signed-off-by: Juergen
chars to be printed in the related interfaces, so the trailing 0 byte
is no longer required.
Signed-off-by: Juergen Gross
---
xen/drivers/char/console.c | 17 -
1 file changed, 8 insertions(+), 9 deletions(-)
diff --git a/xen/drivers/char/console.c b/xen/drivers/char/console.c
index
Instead of living in drivers/char/console.c move the debugtrace
related coding to a new file common/debugtrace.c
No functional change, code movement only.
Signed-off-by: Juergen Gross
Acked-by: Jan Beulich
---
xen/common/Makefile| 1 +
xen/common/debugtrace.c| 180
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