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authorKevin Hilman <khilman@linaro.org>2015-06-29 10:32:38 -0700
committerKevin Hilman <khilman@linaro.org>2015-06-29 10:32:38 -0700
commit44fbb1dd4002d801ecfefce599bedaca6a6ebbaf (patch)
tree5e822affcf30b83de7aef3537037ee32ed098bf9 /arch/mips/kvm/trap_emul.c
parent0f8f382c2a395749763b94861dececffa4fca82b (diff)
parentd048c068d00da7d4cfa5ea7651933b99026958cf (diff)
Merge tag 'v3.18.16' of git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable into linux-linaro-lsk-v3.18-rt
Linux 3.18.16 * tag 'v3.18.16' of git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable: (394 commits) Linux 3.18.16 arch/x86/kvm/mmu.c: work around gcc-4.4.4 bug md/raid0: fix restore to sector variable in raid0_make_request Linux 3.18.15 ARM: OMAP3: Fix booting with thumb2 kernel xfrm: release dst_orig in case of error in xfrm_lookup() ARC: unbork !LLSC build power/reset: at91: fix return value check in at91_reset_platform_probe() vfs: read file_handle only once in handle_to_path drm/radeon: partially revert "fix VM_CONTEXT*_PAGE_TABLE_END_ADDR handling" drm/radeon: don't share plls if monitors differ in audio support drm/radeon: retry dcpd fetch drm/radeon: fix VM_CONTEXT*_PAGE_TABLE_END_ADDR handling drm/radeon: add new bonaire pci id iwlwifi: pcie: prevent using unmapped memory in fw monitor ACPI / init: Fix the ordering of acpi_reserve_resources() sd: Disable support for 256 byte/sector disks storvsc: Set the SRB flags correctly when no data transfer is needed rtlwifi: rtl8192cu: Fix kernel deadlock md/raid5: don't record new size if resize_stripes fails. ...
Diffstat (limited to 'arch/mips/kvm/trap_emul.c')
-rw-r--r--arch/mips/kvm/trap_emul.c28
1 files changed, 28 insertions, 0 deletions
diff --git a/arch/mips/kvm/trap_emul.c b/arch/mips/kvm/trap_emul.c
index fd7257b70e65..4372cc86650c 100644
--- a/arch/mips/kvm/trap_emul.c
+++ b/arch/mips/kvm/trap_emul.c
@@ -330,6 +330,33 @@ static int kvm_trap_emul_handle_break(struct kvm_vcpu *vcpu)
return ret;
}
+static int kvm_trap_emul_handle_msa_disabled(struct kvm_vcpu *vcpu)
+{
+ struct kvm_run *run = vcpu->run;
+ uint32_t __user *opc = (uint32_t __user *) vcpu->arch.pc;
+ unsigned long cause = vcpu->arch.host_cp0_cause;
+ enum emulation_result er = EMULATE_DONE;
+ int ret = RESUME_GUEST;
+
+ /* No MSA supported in guest, guest reserved instruction exception */
+ er = kvm_mips_emulate_ri_exc(cause, opc, run, vcpu);
+
+ switch (er) {
+ case EMULATE_DONE:
+ ret = RESUME_GUEST;
+ break;
+
+ case EMULATE_FAIL:
+ run->exit_reason = KVM_EXIT_INTERNAL_ERROR;
+ ret = RESUME_HOST;
+ break;
+
+ default:
+ BUG();
+ }
+ return ret;
+}
+
static int kvm_trap_emul_vm_init(struct kvm *kvm)
{
return 0;
@@ -470,6 +497,7 @@ static struct kvm_mips_callbacks kvm_trap_emul_callbacks = {
.handle_syscall = kvm_trap_emul_handle_syscall,
.handle_res_inst = kvm_trap_emul_handle_res_inst,
.handle_break = kvm_trap_emul_handle_break,
+ .handle_msa_disabled = kvm_trap_emul_handle_msa_disabled,
.vm_init = kvm_trap_emul_vm_init,
.vcpu_init = kvm_trap_emul_vcpu_init,