On Fri, 24 Aug 2012 16:04:02 +0800, Lei Wen wrote:
> On Thu, Aug 23, 2012 at 11:27 PM, Christoffer Dall
> wrote:
>> On Thu, Aug 23, 2012 at 11:08 AM, Lei Wen
wrote:
>>> Hi Christoffer,
>>>
>>> [snip]
>>>
diff --git a/arch/arm/kvm/init.S b/arch/arm/kvm/init.S
index 1dc8926..4db26cb 1006
On 11/12/11 20:07, Christoffer Dall wrote:
> On Dec 11, 2011, at 2:48 PM, Peter Maydell wrote:
>
>> On 11 December 2011 19:30, Christoffer Dall
>> wrote:
>>> On Sun, Dec 11, 2011 at 11:03 AM, Peter Maydell
>>> wrote:
Removing the mask would be wrong since the irq field here
is encodin
On 12/12/11 17:39, Christoffer Dall wrote:
> On Mon, Dec 12, 2011 at 9:32 AM, Avi Kivity wrote:
>> On 12/11/2011 12:25 PM, Christoffer Dall wrote:
>>> From: Marc Zyngier
>>>
>>> A guest may need to know which CPU it has booted on (and Linux does).
>>>
On 13/12/11 13:10, Christoffer Dall wrote:
> On Tue, Dec 13, 2011 at 4:45 AM, Avi Kivity wrote:
>> On 12/12/2011 09:53 PM, Christoffer Dall wrote:
>>> - as far as I
>>> know it's not common to have swap space on ARM architectures, but I
>>> could be wrong.
>>
>> It will become common once you sta
On 13/12/11 13:36, Christoffer Dall wrote:
> On Tue, Dec 13, 2011 at 4:37 AM, Avi Kivity wrote:
>> if (new_virt_intr == IRQ | FIQ && virt_intr == FIQ) {
>> /* IRQ raised, FIQ already set */
>> return;
>> }
>>
>
> hmm, so what you want to avoid here is sending an IPI to the other CPU
>
On 19/12/11 14:57, Christoffer Dall wrote:
> On Mon, Dec 19, 2011 at 1:15 AM, Antonios Motakis
> wrote:
>> On 12/11/2011 11:25 AM, Christoffer Dall wrote:
>>> WARNING: This code is in development and guests do not fully boot on SMP
>>> hosts yet.
>> Hello,
>>
>> What would still be needed to fully
On 19/12/11 15:30, Antonios Motakis wrote:
> On 12/19/2011 04:19 PM, Marc Zyngier wrote:
>> On 19/12/11 14:57, Christoffer Dall wrote:
>>>
>>>
>>> You should simply start booting a UP guest on an SMP host, see where
>>> it crashes and start tracking it
On 19/12/11 15:42, Antonios Motakis wrote:
> On 12/19/2011 04:40 PM, Christoffer Dall wrote:
>> On Mon, Dec 19, 2011 at 10:37 AM, Marc Zyngier wrote:
>>> On 19/12/11 15:30, Antonios Motakis wrote:
>>>> On 12/19/2011 04:19 PM, Marc Zyngier wrote:
>>>>&
On 30/01/12 22:46, Peter Maydell wrote:
> On 20 January 2012 02:59, Christoffer Dall
> wrote:
>> There's a new list of issues available at:
>>
>> https://github.com/virtualopensystems/linux-kvm-arm/issues
>
> Thanks for putting this up. Here's a couple more for you :-)
>
> * Support guest kerne
On 01/02/12 12:20, Peter Maydell wrote:
> On 1 February 2012 12:11, Marc Zyngier wrote:
>> The obvious fix would be to test for the virt extensions in ID_PFR1
>> before enabling KVM, and mask out the virt extensions from the same
>> register in the guest by trapping CP15-
ff-by: Marc Zyngier
---
arch/arm/include/asm/kvm_asm.h |4
arch/arm/include/asm/kvm_host.h | 19 +++
arch/arm/kvm/Kconfig|3 ++-
arch/arm/kvm/arm.c |4 ++--
arch/arm/kvm/interrupts.S | 23 +++
arch/arm/kvm/
In order to avoid compilation failure when KVM is not compiled in,
guard the mmu_notifier specific sections with both CONFIG_MMU_NOTIFIER
and KVM_ARCH_WANT_MMU_NOTIFIER, like it is being done in the rest of
the KVM code.
Signed-off-by: Marc Zyngier
---
include/linux/kvm_host.h |4 ++--
1
In order to avoid compilation failure when KVM is not compiled in,
guard the mmu_notifier specific sections with both CONFIG_MMU_NOTIFIER
and KVM_ARCH_WANT_MMU_NOTIFIER, like it is being done in the rest of
the KVM code.
Signed-off-by: Marc Zyngier
---
include/linux/kvm_host.h |4 ++--
1
Use __kvm_hyp_code_end to mark the end of the main HYP code instead of
__kvm_vcpu_run_end. It's a bit cleaner as we're about to add more code
to that section.
Signed-off-by: Marc Zyngier
---
arch/arm/include/asm/kvm_asm.h |3 ++-
arch/arm/kvm/arm.c |4 ++--
ar
ff-by: Marc Zyngier
---
The aging ops are left unused for the moment, until I actually understand what
they are used for and whether they apply to the ARM architecture.
>From v1:
- Fixed the brown paper bug of invalidating the hva instead of the ipa
arch/arm/include/asm/kvm_asm.h |2 +
On 12/02/12 01:12, Christoffer Dall wrote:
> On Sat, Feb 11, 2012 at 10:33 AM, Antonios Motakis
> wrote:
>> On 02/11/2012 06:35 PM, Christoffer Dall wrote:
>>>
>>> On Sat, Feb 11, 2012 at 7:00 AM, Antonios Motakis
>>> wrote:
>>>&
On 12/03/12 06:52, Christoffer Dall wrote:
> From: Christoffer Dall
>
> Handles the guest faults in KVM by mapping in corresponding user pages
> in the 2nd stage page tables.
>
> Introduces new ARM-specific kernel memory types, PAGE_KVM_GUEST and
> pgprot_guest variables used to map 2nd stage me
On 12/03/12 16:23, Christoffer Dall wrote:
> On Mon, Mar 12, 2012 at 11:31 AM, Marc Zyngier wrote:
>> On 12/03/12 06:52, Christoffer Dall wrote:
>>> From: Christoffer Dall
>>>
>>> Handles the guest faults in KVM by mapping in corresponding user pa
Guys,
I've once more updated the branches for KVM/arm64
- kvm-arm/pre-arm64: KVM/ARM stable branches + the "cleanup" branch +
some basic perf support
- kvm-arm/vgic-fixes: as the name says, a couple of pending VGIC related
fixes.
- arm64/soc-armv8-model: Catalin Marinas' arm64 branch
- kvm-arm
Here's a number of patches to cope with the churn that occured in
kvm-next, and breaks the compilation in next-20130215.
No big deal, just regular breakage...
Tested on TC2.
Marc Zyngier (3):
ARM: KVM: fix kvm_arch_{prepare,commit}_memory_region
ARM: KVM: Rename KVM_MEMORY_
morse.
Signed-off-by: Marc Zyngier
---
arch/arm/kvm/mmu.c | 5 -
1 file changed, 5 deletions(-)
diff --git a/arch/arm/kvm/mmu.c b/arch/arm/kvm/mmu.c
index f30e131..99e07c7 100644
--- a/arch/arm/kvm/mmu.c
+++ b/arch/arm/kvm/mmu.c
@@ -633,11 +633,6 @@ int kvm_handle_guest_abort(struct kvm_vcpu
Commit bbacc0c (KVM: Rename KVM_MEMORY_SLOTS -> KVM_USER_MEM_SLOTS)
broke KVM/ARM by changing a global #define.
Apply the same change to fix the compilation breakage.
Signed-off-by: Marc Zyngier
---
arch/arm/include/asm/kvm_host.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
d
Commit f82a8cfe9 (KVM: struct kvm_memory_slot.user_alloc -> bool)
broke the ARM KVM port by changing the prototype of two global
functions.
Apply the same change to fix the compilation breakage.
Signed-off-by: Marc Zyngier
---
arch/arm/kvm/arm.c | 4 ++--
1 file changed, 2 insertions(+)
On Tue, 19 Feb 2013 18:16:53 -0800, Christoffer Dall
wrote:
> On Tue, Feb 19, 2013 at 12:16 PM, Scott Wood
> wrote:
>> We at least need the numberspace to not be architecture-specific if we
>> want
>> to retain the possibility of changing later -- not to mention what
>> happens
>> if architectu
05019
I've now created a branch based off mainline as of this morning, and
containing these fixes:
git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms.git
kvm-arm/core-3.9-rc1-fixes
Now the question is: who wants to merge this? The diffstat looks like this:
Marc Zyngier (3):
host.
Signed-off-by: Marc Zyngier
---
This patch is on top of the pre-arm64 rework series posted earlier.
arch/arm/include/asm/kvm_host.h | 3 ++
arch/arm/kvm/Makefile | 2 +-
arch/arm/kvm/arm.c | 4 +++
arch/arm/kvm/perf.c
v8 is capable of invalidating Stage-2 by IPA, but v7 is not.
Change kvm_tlb_flush_vmid() to take an IPA parameter, which is
then ignored by the invalidation code (and nuke the whole TLB
as it always did).
This allows v8 to implement a more optimized strategy.
Signed-off-by: Marc Zyngier
The ARM ARM says that HPFAR reports bits [39:12] of the faulting
IPA, and we need to complement it with the bottom 12 bits of the
faulting VA.
This is always 12 bits, irrespective of the page size. Makes it
clearer in the code.
Signed-off-by: Marc Zyngier
---
arch/arm/kvm/mmu.c | 9
change the
documentation to reflect the existence of the offset.
On ARM, where we can have an identity mapping between kernel and HYP,
the macros are without any effect.
Signed-off-by: Marc Zyngier
---
arch/arm/include/asm/kvm_mmu.h | 8
arch/arm/kvm/mmu.c | 43
Signed-off-by: Marc Zyngier
---
arch/arm/include/asm/kvm_vgic.h | 1 -
1 file changed, 1 deletion(-)
diff --git a/arch/arm/include/asm/kvm_vgic.h b/arch/arm/include/asm/kvm_vgic.h
index ab97207..343744e 100644
--- a/arch/arm/include/asm/kvm_vgic.h
+++ b/arch/arm/include/asm/kvm_vgic.h
@@ -21,7
Move low level MMU-related operations to kvm_mmu.h. This makes
the MMU code reusable by the arm64 port.
Signed-off-by: Marc Zyngier
---
arch/arm/include/asm/kvm_mmu.h | 58 ++
arch/arm/kvm/mmu.c | 58
Signed-off-by: Marc Zyngier
---
arch/arm/include/asm/kvm_emulate.h | 15 +++
arch/arm/kvm/mmio.c| 17 +++--
2 files changed, 18 insertions(+), 14 deletions(-)
diff --git a/arch/arm/include/asm/kvm_emulate.h
b/arch/arm/include/asm/kvm_emulate.h
index
In order to keep the VFP allocation code common, use an abstract type
for the VFP containers. Maps onto struct vfp_hard_struct on ARM.
Signed-off-by: Marc Zyngier
---
arch/arm/include/asm/kvm_host.h | 6 --
arch/arm/kvm/arm.c | 6 +++---
2 files changed, 7 insertions(+), 5
Instead of directly accessing the fault registers, use proper accessors
so the core code can be shared.
Signed-off-by: Marc Zyngier
---
arch/arm/include/asm/kvm_emulate.h | 21 +
arch/arm/include/asm/kvm_host.h| 14 --
arch/arm/kernel/asm-offsets.c | 8
Signed-off-by: Marc Zyngier
---
arch/arm/include/asm/kvm_emulate.h | 5 +
arch/arm/kvm/mmio.c| 2 +-
2 files changed, 6 insertions(+), 1 deletion(-)
diff --git a/arch/arm/include/asm/kvm_emulate.h
b/arch/arm/include/asm/kvm_emulate.h
index 3c01988..9531535 100644
--- a/arch
It has little to do in emulate.c these days...
Signed-off-by: Marc Zyngier
---
arch/arm/include/asm/kvm_emulate.h | 1 -
arch/arm/kvm/emulate.c | 16
arch/arm/kvm/handle_exit.c | 19 +++
3 files changed, 19 insertions(+), 17 deletions
Signed-off-by: Marc Zyngier
---
arch/arm/include/asm/kvm_emulate.h | 5 +
arch/arm/kvm/mmio.c| 2 +-
2 files changed, 6 insertions(+), 1 deletion(-)
diff --git a/arch/arm/include/asm/kvm_emulate.h
b/arch/arm/include/asm/kvm_emulate.h
index 9531535..236fadd 100644
--- a/arch
Signed-off-by: Marc Zyngier
---
arch/arm/include/asm/kvm_emulate.h | 5 +
arch/arm/kvm/mmio.c| 2 +-
2 files changed, 6 insertions(+), 1 deletion(-)
diff --git a/arch/arm/include/asm/kvm_emulate.h
b/arch/arm/include/asm/kvm_emulate.h
index 603f5ea..90e92b4 100644
--- a/arch
The exit handler selection code cannot be shared with arm64
(two different modes, more exception classes...).
Move it to a separate file (handle_exit.c).
Signed-off-by: Marc Zyngier
---
arch/arm/include/asm/kvm_host.h | 3 +
arch/arm/kvm/Makefile | 2 +-
arch/arm/kvm/arm.c
Signed-off-by: Marc Zyngier
---
arch/arm/include/asm/kvm_emulate.h | 6 ++
arch/arm/kvm/arm.c | 3 +--
arch/arm/kvm/coproc.c | 2 +-
arch/arm/kvm/mmio.c| 2 +-
4 files changed, 9 insertions(+), 4 deletions(-)
diff --git a/arch/arm/include/asm
Signed-off-by: Marc Zyngier
---
arch/arm/include/asm/kvm_emulate.h | 5 +
arch/arm/kvm/mmu.c | 2 +-
2 files changed, 6 insertions(+), 1 deletion(-)
diff --git a/arch/arm/include/asm/kvm_emulate.h
b/arch/arm/include/asm/kvm_emulate.h
index e3e6135..75e54ba 100644
--- a/arch
Signed-off-by: Marc Zyngier
---
arch/arm/include/asm/kvm_emulate.h | 5 +
arch/arm/kvm/arm.c | 4 ++--
arch/arm/kvm/mmu.c | 2 +-
3 files changed, 8 insertions(+), 3 deletions(-)
diff --git a/arch/arm/include/asm/kvm_emulate.h
b/arch/arm/include/asm
guest.c already contains some target-specific checks. Let's move
kvm_target_cpu() over there so arm.c is mostly target agnostic.
Signed-off-by: Marc Zyngier
---
arch/arm/kvm/arm.c | 17 -
arch/arm/kvm/guest.c | 17 +
2 files changed, 17 insertions(+
The virtual GIC is supposed to be 4kB aligned. On a 64kB page
system, comparing the alignment to PAGE_SIZE is wrong.
Use SZ_4K instead.
Signed-off-by: Marc Zyngier
---
arch/arm/kvm/vgic.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm/kvm/vgic.c b/arch/arm/kvm
Instead of hardcoding the maximum MMIO access to be 4 bytes,
compare it to sizeof(unsigned long), which will do the
right thing on both 32 and 64bit systems.
Same thing for sign extention.
Signed-off-by: Marc Zyngier
---
arch/arm/kvm/mmio.c | 7 ---
1 file changed, 4 insertions(+), 3
.
Signed-off-by: Marc Zyngier
---
arch/arm/kvm/mmu.c | 9 +++--
1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/arch/arm/kvm/mmu.c b/arch/arm/kvm/mmu.c
index ead6b16..ec14269 100644
--- a/arch/arm/kvm/mmu.c
+++ b/arch/arm/kvm/mmu.c
@@ -200,8 +200,13 @@ static int
Make the split of the pgd_ptr an implementation specific thing
by moving the init call to an inline function.
Signed-off-by: Marc Zyngier
---
arch/arm/include/asm/kvm_host.h | 19 +++
arch/arm/kvm/arm.c | 12 +---
2 files changed, 20 insertions(+), 11
Signed-off-by: Marc Zyngier
---
arch/arm/include/asm/kvm_emulate.h | 5 +
arch/arm/kvm/mmu.c | 8 +++-
2 files changed, 8 insertions(+), 5 deletions(-)
diff --git a/arch/arm/include/asm/kvm_emulate.h
b/arch/arm/include/asm/kvm_emulate.h
index 75e54ba..2f5cc48 100644
most welcome.
Marc Zyngier (29):
ARM: KVM: convert GP registers from u32 to unsigned long
ARM: KVM: abstract fault register accesses
ARM: KVM: abstract HSR_ISV away
ARM: KVM: abstract HSR_WNR away
ARM: KVM: abstract HSR_SSE away
ARM: KVM: abstract HSR_SRT_{MASK,SHIFT} away
ARM: KVM
Signed-off-by: Marc Zyngier
---
arch/arm/include/asm/kvm_emulate.h | 5 +
arch/arm/kvm/mmio.c| 2 +-
2 files changed, 6 insertions(+), 1 deletion(-)
diff --git a/arch/arm/include/asm/kvm_emulate.h
b/arch/arm/include/asm/kvm_emulate.h
index 2a077bc..603f5ea 100644
--- a/arch
Since the arm64 code doesn't have a global asm/idmap.h file, move
the inclusion to asm/kvm_mmu.h.
Signed-off-by: Marc Zyngier
---
arch/arm/include/asm/kvm_mmu.h | 1 +
arch/arm/kvm/mmu.c | 1 -
2 files changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm/includ
Instead of trying to free everything from PAGE_OFFSET to the
top of memory, use the virt_addr_valid macro to check the
upper limit.
Also do the same for the vmalloc region where the IO mappings
are allocated.
Signed-off-by: Marc Zyngier
---
arch/arm/kvm/mmu.c | 44
This is really hardware emulation, and as such it better be with
its little friends.
Signed-off-by: Marc Zyngier
---
arch/arm/include/asm/kvm_emulate.h | 1 +
arch/arm/kvm/arm.c | 45 --
arch/arm/kvm/emulate.c | 45
Signed-off-by: Marc Zyngier
---
arch/arm/include/asm/kvm_emulate.h | 5 +
arch/arm/kvm/mmio.c| 2 +-
2 files changed, 6 insertions(+), 1 deletion(-)
diff --git a/arch/arm/include/asm/kvm_emulate.h
b/arch/arm/include/asm/kvm_emulate.h
index 90e92b4..c27d9c9 100644
--- a/arch
On 32bit ARM, unsigned long is guaranteed to be a 32bit quantity.
On 64bit ARM, it is a 64bit quantity.
In order to be able to share code between the two architectures,
convert the registers to be unsigned long, so the core code can
be oblivious of the change.
Signed-off-by: Marc Zyngier
Signed-off-by: Marc Zyngier
---
arch/arm/include/asm/kvm_emulate.h | 5 +
arch/arm/kvm/mmio.c| 2 +-
2 files changed, 6 insertions(+), 1 deletion(-)
diff --git a/arch/arm/include/asm/kvm_emulate.h
b/arch/arm/include/asm/kvm_emulate.h
index 236fadd..2a077bc 100644
--- a/arch
Add HYP and S2 page flags, for both normal and device memory.
Signed-off-by: Marc Zyngier
---
arch/arm64/include/asm/pgtable-hwdef.h | 13 +
arch/arm64/include/asm/pgtable.h | 13 +
arch/arm64/mm/mmu.c| 6 +-
3 files changed, 31 insertions
ort has already been merged).
Marc Zyngier (29):
arm64: KVM: define HYP and Stage-2 translation page flags
arm64: KVM: HYP mode idmap support
arm64: KVM: EL2 register definitions
arm64: KVM: system register definitions for 64bit guests
arm64: KVM: Basic ESR_EL2 helpers and vcpu register
Add the necessary infrastructure for identity-mapped HYP page
tables. Idmap-ed code must be in the ".hyp.idmap.text" linker
section.
The rest of the HYP ends up in ".hyp.text".
Signed-off-by: Marc Zyngier
---
arch/arm64/kernel/vmlinux.lds.S | 10 +++
arch/arm64/kvm/id
Define all the useful bitfields for EL2 registers.
Signed-off-by: Marc Zyngier
---
arch/arm64/include/asm/kvm_arm.h | 243 +++
1 file changed, 243 insertions(+)
create mode 100644 arch/arm64/include/asm/kvm_arm.h
diff --git a/arch/arm64/include/asm
Define the saved/restored registers for 64bit guests.
Signed-off-by: Marc Zyngier
---
arch/arm64/include/asm/kvm_asm.h | 68
1 file changed, 68 insertions(+)
create mode 100644 arch/arm64/include/asm/kvm_asm.h
diff --git a/arch/arm64/include/asm
Implements helpers for dealing with the EL2 syndrome register as
well as accessing the vcpu registers.
Signed-off-by: Marc Zyngier
---
arch/arm64/include/asm/kvm_emulate.h | 159 +++
1 file changed, 159 insertions(+)
create mode 100644 arch/arm64/include/asm
Implement the injection of a fault (undefined, data abort or
prefetch abort) into a 64bit guest.
Signed-off-by: Marc Zyngier
---
arch/arm64/kvm/inject_fault.c | 117 ++
1 file changed, 117 insertions(+)
create mode 100644 arch/arm64/kvm/inject_fault.c
Define the arm64 specific MMU backend:
- HYP/kernel VA offset
- S2 4/64kB definitions
- S2 page table populating and flushing
- icache cleaning
Signed-off-by: Marc Zyngier
---
arch/arm64/include/asm/kvm_mmu.h | 126 +++
1 file changed, 126 insertions
Provide 64bit system register handling, modeled after the cp15
handling for ARM.
Signed-off-by: Marc Zyngier
---
arch/arm64/include/asm/kvm_coproc.h | 51 ++
arch/arm64/include/uapi/asm/kvm.h | 56 +++
arch/arm64/kvm/sys_regs.c | 962
arch
Provide the kvm.h file that defines the user space visible
interface.
Signed-off-by: Marc Zyngier
---
arch/arm64/include/uapi/asm/kvm.h | 112 ++
1 file changed, 112 insertions(+)
create mode 100644 arch/arm64/include/uapi/asm/kvm.h
diff --git a/arch/arm64
Define the 32bit specific registers (SPSRs, cp15...).
Most CPU registers are directly mapped to a 64bit register
(r0->x0...). Only the SPSRs have separate registers.
cp15 registers are also mapped into their 64bit counterpart in most
cases.
Signed-off-by: Marc Zyngier
---
arch/arm64/incl
Signed-off-by: Marc Zyngier
---
arch/arm64/Kconfig | 2 ++
arch/arm64/Makefile | 2 +-
arch/arm64/kvm/Kconfig | 59 +
arch/arm64/kvm/Makefile | 18 +++
4 files changed, 80 insertions(+), 1 deletion(-)
create mode 100644
Wire the PSCI backend into the exit handling code.
Signed-off-by: Marc Zyngier
---
arch/arm64/include/asm/kvm_host.h | 2 +-
arch/arm64/include/asm/kvm_psci.h | 23 +++
arch/arm64/include/uapi/asm/kvm.h | 16
arch/arm64/kvm/handle_exit.c | 16
Shouldn't be needed - a complete duplicate from arch/arm.
Signed-off-by: Marc Zyngier
---
arch/arm64/include/asm/kvm_vgic.h | 156 ++
1 file changed, 156 insertions(+)
create mode 100644 arch/arm64/include/asm/kvm_vgic.h
diff --git a/arch/arm64/includ
Define the necessary structures to perform an MMIO access.
Signed-off-by: Marc Zyngier
---
arch/arm64/include/asm/kvm_mmio.h | 59 +++
1 file changed, 59 insertions(+)
create mode 100644 arch/arm64/include/asm/kvm_mmio.h
diff --git a/arch/arm64/include/asm
The HYP mode world switch in all its glory.
Implements save/restore of host/guest registers, EL2 trapping,
IPA resolution, and additional services (tlb invalidation).
Signed-off-by: Marc Zyngier
---
arch/arm64/kernel/asm-offsets.c | 33 ++
arch/arm64/kvm/hyp.S| 756
Add the support code for Cortex-A57 specific system registers.
Signed-off-by: Marc Zyngier
---
arch/arm64/kvm/sys_regs_a57.c | 96 +++
1 file changed, 96 insertions(+)
create mode 100644 arch/arm64/kvm/sys_regs_a57.c
diff --git a/arch/arm64/kvm
Provide the reset code for a virtual CPU booted in 64bit mode.
Signed-off-by: Marc Zyngier
---
arch/arm64/kvm/reset.c | 63 ++
1 file changed, 63 insertions(+)
create mode 100644 arch/arm64/kvm/reset.c
diff --git a/arch/arm64/kvm/reset.c b/arch
Provide EL2 with page tables and stack, and set the vectors
to point to the full blown world-switch code.
Signed-off-by: Marc Zyngier
---
arch/arm64/include/asm/kvm_host.h | 11 +
arch/arm64/kvm/hyp-init.S | 89 +++
2 files changed, 100 insertions
Provide the architecture dependent structures for VM and
vcpu abstractions.
Signed-off-by: Marc Zyngier
---
arch/arm64/include/asm/kvm_host.h | 178 ++
1 file changed, 178 insertions(+)
create mode 100644 arch/arm64/include/asm/kvm_host.h
diff --git a/arch
Let userspace play with the guest registers.
Signed-off-by: Marc Zyngier
---
arch/arm64/kvm/guest.c | 240 +
1 file changed, 240 insertions(+)
create mode 100644 arch/arm64/kvm/guest.c
diff --git a/arch/arm64/kvm/guest.c b/arch/arm64/kvm/guest.c
Handle the exit of a VM, decoding the exit reason from HYP mode
and calling the corresponding handler.
Signed-off-by: Marc Zyngier
---
arch/arm64/kvm/handle_exit.c | 119 +++
1 file changed, 119 insertions(+)
create mode 100644 arch/arm64/kvm
Shouldn't be needed - a complete duplicate from arch/arm.
Signed-off-by: Marc Zyngier
---
arch/arm/kvm/arch_timer.c | 1 +
arch/arm64/include/asm/kvm_arch_timer.h | 58 +
2 files changed, 59 insertions(+)
create mode 100644 arch/arm64/includ
Allow access to the 32bit register file through the usual API.
Signed-off-by: Marc Zyngier
---
arch/arm64/include/asm/kvm_emulate.h | 17 +++-
arch/arm64/kvm/Makefile | 2 +-
arch/arm64/kvm/regmap.c | 168 +++
3 files changed, 184
As conditionnal instructions can trap on AArch32, add the thinest
possible emulation layer to keep 32bit guests happy.
Signed-off-by: Marc Zyngier
---
arch/arm64/include/asm/kvm_emulate.h | 13 ++-
arch/arm64/kvm/Makefile | 2 +-
arch/arm64/kvm/emulate.c | 154
Provide the necessary infrastructure to trap coprocessor accesses that
occur when running 32bit guests.
Also wire SMC and HVC trapped in 32bit mode while were at it.
Signed-off-by: Marc Zyngier
---
arch/arm64/include/asm/kvm_coproc.h | 5 ++
arch/arm64/kvm/handle_exit.c| 7 ++
arch
Enable handling of 32bit coprocessor traps for Cortex-A57.
Signed-off-by: Marc Zyngier
---
arch/arm64/kvm/sys_regs_a57.c | 22 ++
1 file changed, 22 insertions(+)
diff --git a/arch/arm64/kvm/sys_regs_a57.c b/arch/arm64/kvm/sys_regs_a57.c
index dcc88fe..56c0641 100644
--- a
Allow registers specific to 32bit guests to be saved/restored
during the world switch.
Signed-off-by: Marc Zyngier
---
arch/arm64/kvm/hyp.S | 70
1 file changed, 70 insertions(+)
diff --git a/arch/arm64/kvm/hyp.S b/arch/arm64/kvm/hyp.S
index
Add fault injection capability for 32bit guests.
Signed-off-by: Marc Zyngier
---
arch/arm64/kvm/inject_fault.c | 79 ++-
1 file changed, 78 insertions(+), 1 deletion(-)
diff --git a/arch/arm64/kvm/inject_fault.c b/arch/arm64/kvm/inject_fault.c
index
Wire the init of a 32bit vcpu by allowing 32bit modes in pstate,
and providing sensible defaults out of reset state.
This feature is of course conditionned by the presence of 32bit
capability on the physical CPU.
Signed-off-by: Marc Zyngier
---
arch/arm64/include/asm/kvm_host.h | 2 +-
arch
On Wed, 6 Mar 2013 16:31:48 -0800, Christoffer Dall
wrote:
Hi Christoffer,
>
> Please pull these KVM/ARM fixes mostly centered around preparation for
> Marc's ARMv8 KVM work.
Can we please hold on that for a while? asm-offset.c is usually a
candidate for merge conflicts as people start pushing
On Wed, 6 Mar 2013 20:40:00 -0800, Christoffer Dall
wrote:
> On Wed, Mar 6, 2013 at 7:54 PM, Marc Zyngier
wrote:
>> On Wed, 6 Mar 2013 16:31:48 -0800, Christoffer Dall
>>
>> wrote:
>>
>> Hi Christoffer,
>>
>>>
>>> Please pull these KVM/AR
On Thu, 7 Mar 2013 16:09:00 -0300, Marcelo Tosatti
wrote:
> On Thu, Mar 07, 2013 at 07:57:23AM +0100, Marc Zyngier wrote:
>> On Wed, 6 Mar 2013 20:40:00 -0800, Christoffer Dall
>>
>> wrote:
>> > On Wed, Mar 6, 2013 at 7:54 PM, Marc Zyngier
>> wrote:
>
On Thu, 7 Mar 2013 11:33:12 +0100, Alexander Graf wrote:
> On 05.03.2013, at 04:47, Marc Zyngier wrote:
>
>> Define the saved/restored registers for 64bit guests.
>>
>> Signed-off-by: Marc Zyngier
>> ---
>> arch/arm64/include/asm/kvm_asm.h | 68
>> +++
On Thu, 7 Mar 2013 11:30:20 +0100, Alexander Graf wrote:
> On 05.03.2013, at 04:47, Marc Zyngier wrote:
>
>> Provide 64bit system register handling, modeled after the cp15
>> handling for ARM.
>>
>> Signed-off-by: Marc Zyngier
>> ---
>> arch/arm64
On Thu, 7 Mar 2013 10:09:03 +0200, "Michael S. Tsirkin"
wrote:
> On Tue, Mar 05, 2013 at 03:47:24AM +, Marc Zyngier wrote:
>> Provide the kvm.h file that defines the user space visible
>> interface.
>>
>> Signed-off-by: Marc Zyngier
>> ---
On 08/03/13 11:31, Gleb Natapov wrote:
> On Fri, Mar 08, 2013 at 04:12:41AM +0100, Marc Zyngier wrote:
>> On Thu, 7 Mar 2013 16:09:00 -0300, Marcelo Tosatti
>> wrote:
>>> On Thu, Mar 07, 2013 at 07:57:23AM +0100, Marc Zyngier wrote:
>>>> On Wed, 6 Mar 2
On 08/03/13 19:26, Christoffer Dall wrote:
> On Thu, Mar 7, 2013 at 7:12 PM, Marc Zyngier wrote:
>> On Thu, 7 Mar 2013 16:09:00 -0300, Marcelo Tosatti
>> wrote:
>>> On Thu, Mar 07, 2013 at 07:57:23AM +0100, Marc Zyngier wrote:
>>>> On Wed, 6 Mar 2
On 12/03/13 13:20, Christopher Covington wrote:
Hi Christopher,
> Here are a few minor questions and suggestions.
>
> On 03/04/2013 10:47 PM, Marc Zyngier wrote:
>> Define the saved/restored registers for 64bit guests.
>>
>> Signed-off-by: Marc Zyngier
>&g
On 12/03/13 13:20, Christopher Covington wrote:
Hi Christopher,
> I noticed you went through the trouble of defining several constants in an
> earlier patch. Perhaps you could put them to use here?
>
> On 03/04/2013 10:47 PM, Marc Zyngier wrote:
>> Implement the injection of
On 12/03/13 17:31, Christopher Covington wrote:
> Hi Marc,
>
> On 03/04/2013 10:47 PM, Marc Zyngier wrote:
>> Let userspace play with the guest registers.
>>
>> Signed-off-by: Marc Zyngier
>> ---
>> arch/arm64/kvm/guest.c | 240
>> +++
On 12/03/13 22:07, Christopher Covington wrote:
Hi Christopher,
> On 03/12/2013 02:05 PM, Marc Zyngier wrote:
>> On 12/03/13 17:31, Christopher Covington wrote:
>>> Hi Marc,
>>>
>>> On 03/04/2013 10:47 PM, Marc Zyngier wrote:
>>>> Let userspace pla
On 13/03/13 18:30, Christopher Covington wrote:
Hi Christopher,
> I wonder if two of these registers could be handled in a generic fashion.
[...]
> What's A57-specific about this MPIDR behavior?
[...]
> What's A57-specific about this CPACR behavior?
In both cases, nothing I can think of. The
On 20/03/13 20:04, Christopher Covington wrote:
> Hi Marc,
>
> On 03/13/2013 03:59 PM, Christopher Covington wrote:
>
> [...]
>
>> Alternatively, you could consider storing the host registers in a
>> slimmed-down vcpu structure for hosts, rather than on the stack.
I am actively implementing thi
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