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ANDROID: KVM: arm64: Refactor calculating SVE state size to use helpers

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The main factor for determining the SVE state size is the vector
length, and future patches will need to calculate it without
necessarily having a vcpu as a reference.

No functional change intended.

Bug: 357781595
Change-Id: I0b4f7145f4d9cf11c7c0f0dcd66a4ced838179e1
Signed-off-by: Fuad Tabba <tabba@google.com>
This commit is contained in:
Fuad Tabba
2023-03-23 10:16:13 +00:00
committed by Keir Fraser
parent 8ea94cc163
commit f112781f67
1 changed files with 9 additions and 7 deletions
Download Patch File Download Diff File Expand all files Collapse all files
arch/arm64/include/asm/kvm_host.h
+9 -7
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@@ -926,25 +926,27 @@ struct kvm_vcpu_arch {
#define vcpu_sve_pffr(vcpu) (kern_hyp_va((vcpu)->arch.sve_state) + \
sve_ffr_offset((vcpu)->arch.sve_max_vl))
#define vcpu_sve_max_vq(vcpu) sve_vq_from_vl((vcpu)->arch.sve_max_vl)
#define vcpu_sve_zcr_elx(vcpu) \
(unlikely(is_hyp_ctxt(vcpu)) ? ZCR_EL2 : ZCR_EL1)
#define vcpu_sve_state_size(vcpu) ({ \
#define sve_state_size(sve_max_vl) ({ \
size_t __size_ret; \
unsigned int __vcpu_vq; \
unsigned int __vq; \
\
if (WARN_ON(!sve_vl_valid((vcpu)->arch.sve_max_vl))) { \
if (WARN_ON(!sve_vl_valid(sve_max_vl))) { \
__size_ret = 0; \
} else { \
__vcpu_vq = vcpu_sve_max_vq(vcpu); \
__size_ret = SVE_SIG_REGS_SIZE(__vcpu_vq); \
__vq = sve_vq_from_vl(sve_max_vl); \
__size_ret = SVE_SIG_REGS_SIZE(__vq); \
} \
\
__size_ret; \
})
#define vcpu_sve_max_vq(vcpu) sve_vq_from_vl((vcpu)->arch.sve_max_vl)
#define vcpu_sve_state_size(vcpu) sve_state_size((vcpu)->arch.sve_max_vl)
#define KVM_GUESTDBG_VALID_MASK (KVM_GUESTDBG_ENABLE | \
KVM_GUESTDBG_USE_SW_BP | \
KVM_GUESTDBG_USE_HW | \