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| author | Andre Przywara <andre.przywara@arm.com> | 2014-06-02 17:37:13 +0400 |
|---|---|---|
| committer | Christoffer Dall <christoffer.dall@linaro.org> | 2015-01-20 20:25:17 +0300 |
| commit | 4429fc64b90368e9bc93f933ea8b011d8db3a2f2 (patch) | |
| tree | a7cb2e3dbebe4c2d6dc7a17e648a04b1c82090b9 /arch/arm64/include/asm/kvm_host.h | |
| parent | 7276030a082c9c33150e5900a80e26c6e3189b16 (diff) | |
| download | linux-4429fc64b90368e9bc93f933ea8b011d8db3a2f2.tar.xz | |
arm/arm64: KVM: rework MPIDR assignment and add accessors
The virtual MPIDR registers (containing topology information) for the
guest are currently mapped linearily to the vcpu_id. Improve this
mapping for arm64 by using three levels to not artificially limit the
number of vCPUs.
To help this, change and rename the kvm_vcpu_get_mpidr() function to
mask off the non-affinity bits in the MPIDR register.
Also add an accessor to later allow easier access to a vCPU with a
given MPIDR. Use this new accessor in the PSCI emulation.
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org>
Reviewed-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
Diffstat (limited to 'arch/arm64/include/asm/kvm_host.h')
| -rw-r--r-- | arch/arm64/include/asm/kvm_host.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h index 012af6ce9eed..ff8ee3ec32f4 100644 --- a/arch/arm64/include/asm/kvm_host.h +++ b/arch/arm64/include/asm/kvm_host.h @@ -207,6 +207,8 @@ int handle_exit(struct kvm_vcpu *vcpu, struct kvm_run *run, int kvm_perf_init(void); int kvm_perf_teardown(void); +struct kvm_vcpu *kvm_mpidr_to_vcpu(struct kvm *kvm, unsigned long mpidr); + static inline void __cpu_init_hyp_mode(phys_addr_t boot_pgd_ptr, phys_addr_t pgd_ptr, unsigned long hyp_stack_ptr, |