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authorChristoffer Dall <christoffer.dall@linaro.org>2014-10-16 16:40:53 +0200
committerChristoffer Dall <christoffer.dall@linaro.org>2014-12-13 14:15:26 +0100
commitf7fa034dc8559c7d7326bfc8bd1a26175abd931a (patch)
treeaa0458365535fcc65662a40fef2dec95a43a47a0 /arch/arm64/include/asm
parentb856a59141b1066d3c896a0d0231f84dabd040af (diff)
downloadlinux-f7fa034dc8559c7d7326bfc8bd1a26175abd931a.tar.gz
arm/arm64: KVM: Clarify KVM_ARM_VCPU_INIT ABI
It is not clear that this ioctl can be called multiple times for a given vcpu. Userspace already does this, so clarify the ABI. Also specify that userspace is expected to always make secondary and subsequent calls to the ioctl with the same parameters for the VCPU as the initial call (which userspace also already does). Add code to check that userspace doesn't violate that ABI in the future, and move the kvm_vcpu_set_target() function which is currently duplicated between the 32-bit and 64-bit versions in guest.c to a common static function in arm.c, shared between both architectures. Acked-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
Diffstat (limited to 'arch/arm64/include/asm')
-rw-r--r--arch/arm64/include/asm/kvm_host.h2
1 files changed, 0 insertions, 2 deletions
diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
index 2012c4ba8d67..65c615294589 100644
--- a/arch/arm64/include/asm/kvm_host.h
+++ b/arch/arm64/include/asm/kvm_host.h
@@ -165,8 +165,6 @@ struct kvm_vcpu_stat {
u32 halt_wakeup;
};
-int kvm_vcpu_set_target(struct kvm_vcpu *vcpu,
- const struct kvm_vcpu_init *init);
int kvm_vcpu_preferred_target(struct kvm_vcpu_init *init);
unsigned long kvm_arm_num_regs(struct kvm_vcpu *vcpu);
int kvm_arm_copy_reg_indices(struct kvm_vcpu *vcpu, u64 __user *indices);