Message ID | 20241128123515.1709777-12-tabba@google.com (mailing list archive) |
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charset="UTF-8" X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20241128_043541_599197_59C55BBD X-CRM114-Status: GOOD ( 10.56 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: <linux-arm-kernel.lists.infradead.org> List-Unsubscribe: <http://lists.infradead.org/mailman/options/linux-arm-kernel>, <mailto:linux-arm-kernel-request@lists.infradead.org?subject=unsubscribe> List-Archive: <http://lists.infradead.org/pipermail/linux-arm-kernel/> List-Post: <mailto:linux-arm-kernel@lists.infradead.org> List-Help: <mailto:linux-arm-kernel-request@lists.infradead.org?subject=help> List-Subscribe: <http://lists.infradead.org/mailman/listinfo/linux-arm-kernel>, <mailto:linux-arm-kernel-request@lists.infradead.org?subject=subscribe> Sender: "linux-arm-kernel" <linux-arm-kernel-bounces@lists.infradead.org> Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org |
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KVM: arm64: Rework guest VM fixed feature handling and trapping in pKVM
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diff --git a/arch/arm64/include/asm/kvm_emulate.h b/arch/arm64/include/asm/kvm_emulate.h index cf811009a33c..7b3dc52248ce 100644 --- a/arch/arm64/include/asm/kvm_emulate.h +++ b/arch/arm64/include/asm/kvm_emulate.h @@ -619,7 +619,8 @@ static __always_inline void kvm_write_cptr_el2(u64 val) write_sysreg(val, cptr_el2); } -static __always_inline u64 kvm_get_reset_cptr_el2(struct kvm_vcpu *vcpu) +/* Resets the value of cptr_el2 when returning to the host. */ +static __always_inline void kvm_reset_cptr_el2(struct kvm_vcpu *vcpu) { u64 val; @@ -643,13 +644,6 @@ static __always_inline u64 kvm_get_reset_cptr_el2(struct kvm_vcpu *vcpu) val &= ~CPTR_EL2_TSM; } - return val; -} - -static __always_inline void kvm_reset_cptr_el2(struct kvm_vcpu *vcpu) -{ - u64 val = kvm_get_reset_cptr_el2(vcpu); - kvm_write_cptr_el2(val); }
Fold kvm_get_reset_cptr_el2() into kvm_reset_cptr_el2(), since it is its only caller. Add a comment to clarify that this function is meant for the host value of cptr_el2. No functional change intended. Signed-off-by: Fuad Tabba <tabba@google.com> --- arch/arm64/include/asm/kvm_emulate.h | 10 ++-------- 1 file changed, 2 insertions(+), 8 deletions(-)