[PATCH v2 07/25] KVM: arm64: nv: Drop sanitised_sys_reg() helper
From: Marc Zyngier <maz@kernel.org>
Date: 2024-01-30 20:46:17
Also in:
kvmarm
Subsystem:
arm64 port (aarch64 architecture), kernel virtual machine for arm64 (kvm/arm64), the rest · Maintainers:
Catalin Marinas, Will Deacon, Marc Zyngier, Oliver Upton, Linus Torvalds
Now that we have the infrastructure to enforce a sanitised register value depending on the VM configuration, drop the helper that only used the architectural RES0 value. Reviewed-by: Joey Gouly <joey.gouly@arm.com> Signed-off-by: Marc Zyngier <maz@kernel.org> --- arch/arm64/kvm/emulate-nested.c | 22 +++++++--------------- 1 file changed, 7 insertions(+), 15 deletions(-)
diff --git a/arch/arm64/kvm/emulate-nested.c b/arch/arm64/kvm/emulate-nested.c
index 431fd429932d..7a4a886adb9d 100644
--- a/arch/arm64/kvm/emulate-nested.c
+++ b/arch/arm64/kvm/emulate-nested.c@@ -1897,14 +1897,6 @@ static bool check_fgt_bit(u64 val, const union trap_config tc) return ((val >> tc.bit) & 1) == tc.pol; } -#define sanitised_sys_reg(vcpu, reg) \ - ({ \ - u64 __val; \ - __val = __vcpu_sys_reg(vcpu, reg); \ - __val &= ~__ ## reg ## _RES0; \ - (__val); \ - }) - bool __check_nv_sr_forward(struct kvm_vcpu *vcpu) { union trap_config tc;
@@ -1940,25 +1932,25 @@ bool __check_nv_sr_forward(struct kvm_vcpu *vcpu) case HFGxTR_GROUP: if (is_read) - val = sanitised_sys_reg(vcpu, HFGRTR_EL2); + val = __vcpu_sys_reg(vcpu, HFGRTR_EL2); else - val = sanitised_sys_reg(vcpu, HFGWTR_EL2); + val = __vcpu_sys_reg(vcpu, HFGWTR_EL2); break; case HDFGRTR_GROUP: case HDFGWTR_GROUP: if (is_read) - val = sanitised_sys_reg(vcpu, HDFGRTR_EL2); + val = __vcpu_sys_reg(vcpu, HDFGRTR_EL2); else - val = sanitised_sys_reg(vcpu, HDFGWTR_EL2); + val = __vcpu_sys_reg(vcpu, HDFGWTR_EL2); break; case HAFGRTR_GROUP: - val = sanitised_sys_reg(vcpu, HAFGRTR_EL2); + val = __vcpu_sys_reg(vcpu, HAFGRTR_EL2); break; case HFGITR_GROUP: - val = sanitised_sys_reg(vcpu, HFGITR_EL2); + val = __vcpu_sys_reg(vcpu, HFGITR_EL2); switch (tc.fgf) { u64 tmp;
@@ -1966,7 +1958,7 @@ bool __check_nv_sr_forward(struct kvm_vcpu *vcpu) break; case HCRX_FGTnXS: - tmp = sanitised_sys_reg(vcpu, HCRX_EL2); + tmp = __vcpu_sys_reg(vcpu, HCRX_EL2); if (tmp & HCRX_EL2_FGTnXS) tc.fgt = __NO_FGT_GROUP__; }
--
2.39.2
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