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-rw-r--r--arch/arm/kvm/Makefile5
-rw-r--r--arch/arm/kvm/coproc.c27
-rw-r--r--arch/arm/kvm/hyp/cp15-sr.c1
-rw-r--r--arch/arm/kvm/hyp/hyp-entry.S2
-rw-r--r--arch/arm/kvm/hyp/switch.c2
-rw-r--r--arch/arm/kvm/hyp/tlb.c4
-rw-r--r--arch/arm/kvm/interrupts.S4
-rw-r--r--arch/arm/kvm/reset.c24
8 files changed, 48 insertions, 21 deletions
diff --git a/arch/arm/kvm/Makefile b/arch/arm/kvm/Makefile
index 48de846f2246..531e59f5be9c 100644
--- a/arch/arm/kvm/Makefile
+++ b/arch/arm/kvm/Makefile
@@ -8,9 +8,8 @@ ifeq ($(plus_virt),+virt)
plus_virt_def := -DREQUIRES_VIRT=1
endif
-ccflags-y += -Iarch/arm/kvm -Ivirt/kvm/arm/vgic
-CFLAGS_arm.o := -I. $(plus_virt_def)
-CFLAGS_mmu.o := -I.
+ccflags-y += -I $(srctree)/$(src) -I $(srctree)/virt/kvm/arm/vgic
+CFLAGS_arm.o := $(plus_virt_def)
AFLAGS_init.o := -Wa,-march=armv7-a$(plus_virt)
AFLAGS_interrupts.o := -Wa,-march=armv7-a$(plus_virt)
diff --git a/arch/arm/kvm/coproc.c b/arch/arm/kvm/coproc.c
index 222c1635bc7a..14915c78bd99 100644
--- a/arch/arm/kvm/coproc.c
+++ b/arch/arm/kvm/coproc.c
@@ -293,15 +293,16 @@ static bool access_cntp_tval(struct kvm_vcpu *vcpu,
const struct coproc_params *p,
const struct coproc_reg *r)
{
- u64 now = kvm_phys_timer_read();
- u64 val;
+ u32 val;
if (p->is_write) {
val = *vcpu_reg(vcpu, p->Rt1);
- kvm_arm_timer_set_reg(vcpu, KVM_REG_ARM_PTIMER_CVAL, val + now);
+ kvm_arm_timer_write_sysreg(vcpu,
+ TIMER_PTIMER, TIMER_REG_TVAL, val);
} else {
- val = kvm_arm_timer_get_reg(vcpu, KVM_REG_ARM_PTIMER_CVAL);
- *vcpu_reg(vcpu, p->Rt1) = val - now;
+ val = kvm_arm_timer_read_sysreg(vcpu,
+ TIMER_PTIMER, TIMER_REG_TVAL);
+ *vcpu_reg(vcpu, p->Rt1) = val;
}
return true;
@@ -315,9 +316,11 @@ static bool access_cntp_ctl(struct kvm_vcpu *vcpu,
if (p->is_write) {
val = *vcpu_reg(vcpu, p->Rt1);
- kvm_arm_timer_set_reg(vcpu, KVM_REG_ARM_PTIMER_CTL, val);
+ kvm_arm_timer_write_sysreg(vcpu,
+ TIMER_PTIMER, TIMER_REG_CTL, val);
} else {
- val = kvm_arm_timer_get_reg(vcpu, KVM_REG_ARM_PTIMER_CTL);
+ val = kvm_arm_timer_read_sysreg(vcpu,
+ TIMER_PTIMER, TIMER_REG_CTL);
*vcpu_reg(vcpu, p->Rt1) = val;
}
@@ -333,9 +336,11 @@ static bool access_cntp_cval(struct kvm_vcpu *vcpu,
if (p->is_write) {
val = (u64)*vcpu_reg(vcpu, p->Rt2) << 32;
val |= *vcpu_reg(vcpu, p->Rt1);
- kvm_arm_timer_set_reg(vcpu, KVM_REG_ARM_PTIMER_CVAL, val);
+ kvm_arm_timer_write_sysreg(vcpu,
+ TIMER_PTIMER, TIMER_REG_CVAL, val);
} else {
- val = kvm_arm_timer_get_reg(vcpu, KVM_REG_ARM_PTIMER_CVAL);
+ val = kvm_arm_timer_read_sysreg(vcpu,
+ TIMER_PTIMER, TIMER_REG_CVAL);
*vcpu_reg(vcpu, p->Rt1) = val;
*vcpu_reg(vcpu, p->Rt2) = val >> 32;
}
@@ -1450,6 +1455,6 @@ void kvm_reset_coprocs(struct kvm_vcpu *vcpu)
reset_coproc_regs(vcpu, table, num);
for (num = 1; num < NR_CP15_REGS; num++)
- if (vcpu_cp15(vcpu, num) == 0x42424242)
- panic("Didn't reset vcpu_cp15(vcpu, %zi)", num);
+ WARN(vcpu_cp15(vcpu, num) == 0x42424242,
+ "Didn't reset vcpu_cp15(vcpu, %zi)", num);
}
diff --git a/arch/arm/kvm/hyp/cp15-sr.c b/arch/arm/kvm/hyp/cp15-sr.c
index c4782812714c..8bf895ec6e04 100644
--- a/arch/arm/kvm/hyp/cp15-sr.c
+++ b/arch/arm/kvm/hyp/cp15-sr.c
@@ -27,7 +27,6 @@ static u64 *cp15_64(struct kvm_cpu_context *ctxt, int idx)
void __hyp_text __sysreg_save_state(struct kvm_cpu_context *ctxt)
{
- ctxt->cp15[c0_MPIDR] = read_sysreg(VMPIDR);
ctxt->cp15[c0_CSSELR] = read_sysreg(CSSELR);
ctxt->cp15[c1_SCTLR] = read_sysreg(SCTLR);
ctxt->cp15[c1_CPACR] = read_sysreg(CPACR);
diff --git a/arch/arm/kvm/hyp/hyp-entry.S b/arch/arm/kvm/hyp/hyp-entry.S
index aa3f9a9837ac..6ed3cf23fe89 100644
--- a/arch/arm/kvm/hyp/hyp-entry.S
+++ b/arch/arm/kvm/hyp/hyp-entry.S
@@ -176,7 +176,7 @@ THUMB( orr lr, lr, #PSR_T_BIT )
msr spsr_cxsf, lr
ldr lr, =panic
msr ELR_hyp, lr
- ldr lr, =kvm_call_hyp
+ ldr lr, =__kvm_call_hyp
clrex
eret
ENDPROC(__hyp_do_panic)
diff --git a/arch/arm/kvm/hyp/switch.c b/arch/arm/kvm/hyp/switch.c
index acf1c37fa49c..3b058a5d7c5f 100644
--- a/arch/arm/kvm/hyp/switch.c
+++ b/arch/arm/kvm/hyp/switch.c
@@ -77,7 +77,7 @@ static void __hyp_text __deactivate_traps(struct kvm_vcpu *vcpu)
static void __hyp_text __activate_vm(struct kvm_vcpu *vcpu)
{
struct kvm *kvm = kern_hyp_va(vcpu->kvm);
- write_sysreg(kvm->arch.vttbr, VTTBR);
+ write_sysreg(kvm_get_vttbr(kvm), VTTBR);
write_sysreg(vcpu->arch.midr, VPIDR);
}
diff --git a/arch/arm/kvm/hyp/tlb.c b/arch/arm/kvm/hyp/tlb.c
index c0edd450e104..8e4afba73635 100644
--- a/arch/arm/kvm/hyp/tlb.c
+++ b/arch/arm/kvm/hyp/tlb.c
@@ -41,7 +41,7 @@ void __hyp_text __kvm_tlb_flush_vmid(struct kvm *kvm)
/* Switch to requested VMID */
kvm = kern_hyp_va(kvm);
- write_sysreg(kvm->arch.vttbr, VTTBR);
+ write_sysreg(kvm_get_vttbr(kvm), VTTBR);
isb();
write_sysreg(0, TLBIALLIS);
@@ -61,7 +61,7 @@ void __hyp_text __kvm_tlb_flush_local_vmid(struct kvm_vcpu *vcpu)
struct kvm *kvm = kern_hyp_va(kern_hyp_va(vcpu)->kvm);
/* Switch to requested VMID */
- write_sysreg(kvm->arch.vttbr, VTTBR);
+ write_sysreg(kvm_get_vttbr(kvm), VTTBR);
isb();
write_sysreg(0, TLBIALL);
diff --git a/arch/arm/kvm/interrupts.S b/arch/arm/kvm/interrupts.S
index 80a1d6cd261c..a08e6419ebe9 100644
--- a/arch/arm/kvm/interrupts.S
+++ b/arch/arm/kvm/interrupts.S
@@ -42,7 +42,7 @@
* r12: caller save
* rest: callee save
*/
-ENTRY(kvm_call_hyp)
+ENTRY(__kvm_call_hyp)
hvc #0
bx lr
-ENDPROC(kvm_call_hyp)
+ENDPROC(__kvm_call_hyp)
diff --git a/arch/arm/kvm/reset.c b/arch/arm/kvm/reset.c
index 5ed0c3ee33d6..e53327912adc 100644
--- a/arch/arm/kvm/reset.c
+++ b/arch/arm/kvm/reset.c
@@ -26,6 +26,7 @@
#include <asm/cputype.h>
#include <asm/kvm_arm.h>
#include <asm/kvm_coproc.h>
+#include <asm/kvm_emulate.h>
#include <kvm/arm_arch_timer.h>
@@ -69,6 +70,29 @@ int kvm_reset_vcpu(struct kvm_vcpu *vcpu)
/* Reset CP15 registers */
kvm_reset_coprocs(vcpu);
+ /*
+ * Additional reset state handling that PSCI may have imposed on us.
+ * Must be done after all the sys_reg reset.
+ */
+ if (READ_ONCE(vcpu->arch.reset_state.reset)) {
+ unsigned long target_pc = vcpu->arch.reset_state.pc;
+
+ /* Gracefully handle Thumb2 entry point */
+ if (target_pc & 1) {
+ target_pc &= ~1UL;
+ vcpu_set_thumb(vcpu);
+ }
+
+ /* Propagate caller endianness */
+ if (vcpu->arch.reset_state.be)
+ kvm_vcpu_set_be(vcpu);
+
+ *vcpu_pc(vcpu) = target_pc;
+ vcpu_set_reg(vcpu, 0, vcpu->arch.reset_state.r0);
+
+ vcpu->arch.reset_state.reset = false;
+ }
+
/* Reset arch_timer context */
return kvm_timer_vcpu_reset(vcpu);
}
generated by cgit v1.2.3 (git 2.39.0) at 2024-11-21 17:30:02 +0300