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authorLinus Torvalds <torvalds@linux-foundation.org>2016-08-02 16:11:27 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2016-08-02 16:11:27 -0400
commit221bb8a46e230b9824204ae86537183d9991ff2a (patch)
tree92510d72285b2285be7cb87288bf088cb28af4c1 /arch/arm64/kvm/hyp/switch.c
parentf7b32e4c021fd788f13f6785e17efbc3eb05b351 (diff)
parent23528bb21ee2c9b27f3feddd77a2a3351a8df148 (diff)
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull KVM updates from Paolo Bonzini: - ARM: GICv3 ITS emulation and various fixes. Removal of the old VGIC implementation. - s390: support for trapping software breakpoints, nested virtualization (vSIE), the STHYI opcode, initial extensions for CPU model support. - MIPS: support for MIPS64 hosts (32-bit guests only) and lots of cleanups, preliminary to this and the upcoming support for hardware virtualization extensions. - x86: support for execute-only mappings in nested EPT; reduced vmexit latency for TSC deadline timer (by about 30%) on Intel hosts; support for more than 255 vCPUs. - PPC: bugfixes. * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (302 commits) KVM: PPC: Introduce KVM_CAP_PPC_HTM MIPS: Select HAVE_KVM for MIPS64_R{2,6} MIPS: KVM: Reset CP0_PageMask during host TLB flush MIPS: KVM: Fix ptr->int cast via KVM_GUEST_KSEGX() MIPS: KVM: Sign extend MFC0/RDHWR results MIPS: KVM: Fix 64-bit big endian dynamic translation MIPS: KVM: Fail if ebase doesn't fit in CP0_EBase MIPS: KVM: Use 64-bit CP0_EBase when appropriate MIPS: KVM: Set CP0_Status.KX on MIPS64 MIPS: KVM: Make entry code MIPS64 friendly MIPS: KVM: Use kmap instead of CKSEG0ADDR() MIPS: KVM: Use virt_to_phys() to get commpage PFN MIPS: Fix definition of KSEGX() for 64-bit KVM: VMX: Add VMCS to CPU's loaded VMCSs before VMPTRLD kvm: x86: nVMX: maintain internal copy of current VMCS KVM: PPC: Book3S HV: Save/restore TM state in H_CEDE KVM: PPC: Book3S HV: Pull out TM state save/restore into separate procedures KVM: arm64: vgic-its: Simplify MAPI error handling KVM: arm64: vgic-its: Make vgic_its_cmd_handle_mapi similar to other handlers KVM: arm64: vgic-its: Turn device_id validation into generic ID validation ...
Diffstat (limited to 'arch/arm64/kvm/hyp/switch.c')
-rw-r--r--arch/arm64/kvm/hyp/switch.c11
1 files changed, 9 insertions, 2 deletions
diff --git a/arch/arm64/kvm/hyp/switch.c b/arch/arm64/kvm/hyp/switch.c
index 4373997d1a70..ae7855f16ec2 100644
--- a/arch/arm64/kvm/hyp/switch.c
+++ b/arch/arm64/kvm/hyp/switch.c
@@ -299,9 +299,16 @@ static const char __hyp_panic_string[] = "HYP panic:\nPS:%08llx PC:%016llx ESR:%
static void __hyp_text __hyp_call_panic_nvhe(u64 spsr, u64 elr, u64 par)
{
- unsigned long str_va = (unsigned long)__hyp_panic_string;
+ unsigned long str_va;
- __hyp_do_panic(hyp_kern_va(str_va),
+ /*
+ * Force the panic string to be loaded from the literal pool,
+ * making sure it is a kernel address and not a PC-relative
+ * reference.
+ */
+ asm volatile("ldr %0, =__hyp_panic_string" : "=r" (str_va));
+
+ __hyp_do_panic(str_va,
spsr, elr,
read_sysreg(esr_el2), read_sysreg_el2(far),
read_sysreg(hpfar_el2), par,