提交 · 000d399625b4b302935508f2fc9ce93ff1bd1ba4 · openeuler / raspberrypi-kernel

07 3月, 2013 30 次提交

ARM: KVM: sanitize freeing of HYP page tables · 000d3996

由 Marc Zyngier 提交于 3月 05, 2013

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: NMarc Zyngier <marc.zyngier@arm.com>
Signed-off-by: NChristoffer Dall <cdall@cs.columbia.edu>

000d3996

M
ARM: KVM: move kvm_handle_wfi to handle_exit.c · 6190920a
由 Marc Zyngier 提交于 10月 05, 2012
```
It has little to do in emulate.c these days...
Signed-off-by: NMarc Zyngier <marc.zyngier@arm.com>
```
6190920a

ARM: KVM: change kvm_tlb_flush_vmid to kvm_tlb_flush_vmid_ipa · 48762767

由 Marc Zyngier 提交于 1月 28, 2013

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: NMarc Zyngier <marc.zyngier@arm.com>

48762767

ARM: KVM: move include of asm/idmap.h to kvm_mmu.h · 06fe0b73

由 Marc Zyngier 提交于 12月 17, 2012

Since the arm64 code doesn't have a global asm/idmap.h file, move
the inclusion to asm/kvm_mmu.h.
Signed-off-by: NMarc Zyngier <marc.zyngier@arm.com>

06fe0b73

ARM: KVM: vgic: decouple alignment restriction from page size · d7bb0777

由 Marc Zyngier 提交于 12月 12, 2012

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: NMarc Zyngier <marc.zyngier@arm.com>

d7bb0777

ARM: KVM: fix fault_ipa computing · cfe3950c

由 Marc Zyngier 提交于 12月 12, 2012

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: NMarc Zyngier <marc.zyngier@arm.com>

cfe3950c

ARM: KVM: move kvm_target_cpu to guest.c · 728d577d

由 Marc Zyngier 提交于 10月 15, 2012

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: NMarc Zyngier <marc.zyngier@arm.com>

728d577d

ARM: KVM: fix address validation for HYP mappings · b4034bde

由 Marc Zyngier 提交于 10月 28, 2012

__create_hyp_mappings() performs some kind of address validation before
creating the mapping, by verifying that the start address is above
PAGE_OFFSET.

This check is not completely correct for kernel memory (the upper
boundary has to be checked as well so we do not end up with highmem
pages), and wrong for IO mappings (the mapping must exist in the vmalloc
region).

Fix this by using the proper predicates (virt_addr_valid and
is_vmalloc_addr), which also work correctly on ARM64 (where the vmalloc
region is below PAGE_OFFSET).

Also change the BUG_ON() into a less agressive error return.
Signed-off-by: NMarc Zyngier <marc.zyngier@arm.com>

b4034bde

ARM: KVM: allow HYP mappings to be at an offset from kernel mappings · 06e8c3b0

由 Marc Zyngier 提交于 10月 28, 2012

arm64 cannot represent the kernel VAs in HYP mode, because of the lack
of TTBR1 at EL2. A way to cope with this situation is to have HYP VAs
to be an offset from the kernel VAs.

Introduce macros to convert a kernel VA to a HYP VA, make the HYP
mapping functions use these conversion macros. Also 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: NMarc Zyngier <marc.zyngier@arm.com>

06e8c3b0

ARM: KVM: use kvm_kernel_vfp_t as an abstract type for VFP containers · 9c7a6432

由 Marc Zyngier 提交于 10月 27, 2012

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: NMarc Zyngier <marc.zyngier@arm.com>

9c7a6432

ARM: KVM: move hyp init to kvm_host.h · e7858c58

由 Marc Zyngier 提交于 10月 05, 2012

Make the split of the pgd_ptr an implementation specific thing
by moving the init call to an inline function.
Signed-off-by: NMarc Zyngier <marc.zyngier@arm.com>

e7858c58

M
ARM: KVM: remove superfluous include from kvm_vgic.h · 629dc446
由 Marc Zyngier 提交于 10月 15, 2012
```
Signed-off-by: NMarc Zyngier <marc.zyngier@arm.com>
```
629dc446

ARM: KVM: abstract most MMU operations · c62ee2b2

由 Marc Zyngier 提交于 10月 15, 2012

Move low level MMU-related operations to kvm_mmu.h. This makes
the MMU code reusable by the arm64 port.
Signed-off-by: NMarc Zyngier <marc.zyngier@arm.com>

c62ee2b2

KVM: ARM: Reintroduce trace_kvm_hvc · c088f8f0

由 Christoffer Dall 提交于 2月 21, 2013

This one got lost in the move to handle_exit, so let's reintroduce it
using an accessor to the immediate value field like the other ones.
Signed-off-by: NChristoffer Dall <cdall@cs.columbia.edu>

c088f8f0

ARM: KVM: move exit handler selection to a separate file · 3414bbff

由 Marc Zyngier 提交于 10月 05, 2012

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: NMarc Zyngier <marc.zyngier@arm.com>
Signed-off-by: NChristoffer Dall <cdall@cs.columbia.edu>

3414bbff

ARM: KVM: move kvm_condition_valid to emulate.c · c5997563

由 Marc Zyngier 提交于 12月 08, 2012

This is really hardware emulation, and as such it better be with
its little friends.
Signed-off-by: NMarc Zyngier <marc.zyngier@arm.com>

c5997563

M
ARM: KVM: abstract HSR_EC_IABT away · 52d1dba9
由 Marc Zyngier 提交于 10月 15, 2012
```
Signed-off-by: NMarc Zyngier <marc.zyngier@arm.com>
```
52d1dba9
M
ARM: KVM: abstract fault decoding away · 1cc287dd
由 Marc Zyngier 提交于 9月 18, 2012
```
Signed-off-by: NMarc Zyngier <marc.zyngier@arm.com>
```
1cc287dd
M
ARM: KVM: abstract exception class decoding away · 4926d445
由 Marc Zyngier 提交于 9月 18, 2012
```
Signed-off-by: NMarc Zyngier <marc.zyngier@arm.com>
```
4926d445

ARM: KVM: abstract IL decoding away · 23b415d6