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KVM: arm64: Minor cleanup of hyp variables used in host

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Small cleanup moving declarations of hyp-exported variables to
kvm_host.h and using macros to avoid having to refer to them with
kvm_nvhe_sym() in host.

No functional change intended.

Signed-off-by: David Brazdil <dbrazdil@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20201208142452.87237-5-dbrazdil@google.com
This commit is contained in:
David Brazdil 2020-12-08 14:24:50 +00:00 committed by Marc Zyngier
parent c3e181aec9
commit 61fe0c37af
4 changed files with 12 additions and 9 deletions
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6
arch/arm64/include/asm/kvm_host.h
View File

@ -260,6 +260,12 @@ struct kvm_host_psci_config {
extern struct kvm_host_psci_config kvm_nvhe_sym(kvm_host_psci_config);
#define kvm_host_psci_config CHOOSE_NVHE_SYM(kvm_host_psci_config)
extern s64 kvm_nvhe_sym(hyp_physvirt_offset);
#define hyp_physvirt_offset CHOOSE_NVHE_SYM(hyp_physvirt_offset)
extern u64 kvm_nvhe_sym(hyp_cpu_logical_map)[NR_CPUS];
#define hyp_cpu_logical_map CHOOSE_NVHE_SYM(hyp_cpu_logical_map)
struct vcpu_reset_state {
unsigned long pc;
unsigned long r0;

4
arch/arm64/kvm/arm.c
View File

@ -65,8 +65,6 @@ static bool vgic_present;
static DEFINE_PER_CPU(unsigned char, kvm_arm_hardware_enabled);
DEFINE_STATIC_KEY_FALSE(userspace_irqchip_in_use);
extern u64 kvm_nvhe_sym(__cpu_logical_map)[NR_CPUS];
int kvm_arch_vcpu_should_kick(struct kvm_vcpu *vcpu)
{
return kvm_vcpu_exiting_guest_mode(vcpu) == IN_GUEST_MODE;
@ -1602,7 +1600,7 @@ static void init_cpu_logical_map(void)
* allow any other CPUs from the `possible` set to boot.
*/
for_each_online_cpu(cpu)
kvm_nvhe_sym(__cpu_logical_map)[cpu] = cpu_logical_map(cpu);
hyp_cpu_logical_map[cpu] = cpu_logical_map(cpu);
}
static bool init_psci_relay(void)

6
arch/arm64/kvm/hyp/nvhe/hyp-smp.c
View File

@ -14,14 +14,14 @@
* Other CPUs should not be allowed to boot because their features were
* not checked against the finalized system capabilities.
*/
u64 __ro_after_init __cpu_logical_map[NR_CPUS] = { [0 ... NR_CPUS-1] = INVALID_HWID };
u64 __ro_after_init hyp_cpu_logical_map[NR_CPUS] = { [0 ... NR_CPUS-1] = INVALID_HWID };
u64 cpu_logical_map(unsigned int cpu)
{
if (cpu >= ARRAY_SIZE(__cpu_logical_map))
if (cpu >= ARRAY_SIZE(hyp_cpu_logical_map))
hyp_panic();
return __cpu_logical_map[cpu];
return hyp_cpu_logical_map[cpu];
}
unsigned long __hyp_per_cpu_offset(unsigned int cpu)

5
arch/arm64/kvm/va_layout.c
View File

@ -34,17 +34,16 @@ static u64 __early_kern_hyp_va(u64 addr)
}
/*
* Store a hyp VA <-> PA offset into a hyp-owned variable.
* Store a hyp VA <-> PA offset into a EL2-owned variable.
*/
static void init_hyp_physvirt_offset(void)
{
extern s64 kvm_nvhe_sym(hyp_physvirt_offset);
u64 kern_va, hyp_va;
/* Compute the offset from the hyp VA and PA of a random symbol. */
kern_va = (u64)lm_alias(__hyp_text_start);
hyp_va = __early_kern_hyp_va(kern_va);
CHOOSE_NVHE_SYM(hyp_physvirt_offset) = (s64)__pa(kern_va) - (s64)hyp_va;
hyp_physvirt_offset = (s64)__pa(kern_va) - (s64)hyp_va;
}
/*