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authorJames Morse <james.morse@arm.com>2019-01-29 18:48:49 +0000
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2019-02-07 23:10:45 +0100
commit0db5e0223035b2c84e6186831fc27511270af812 (patch)
tree2951391eada8a4d03477d3373d53c5dae6acd278 /virt
parent255097c82d821bb2bb18e9c7011841ee7342840f (diff)
downloadlinux-stericsson-0db5e0223035b2c84e6186831fc27511270af812.tar.gz
KVM: arm/arm64: Add kvm_ras.h to collect kvm specific RAS plumbing
To split up APEIs in_nmi() path, the caller needs to always be in_nmi(). KVM shouldn't have to know about this, pull the RAS plumbing out into a header file. Currently guest synchronous external aborts are claimed as RAS notifications by handle_guest_sea(), which is hidden in the arch codes mm/fault.c. 32bit gets a dummy declaration in system_misc.h. There is going to be more of this in the future if/when the kernel supports the SError-based firmware-first notification mechanism and/or kernel-first notifications for both synchronous external abort and SError. Each of these will come with some Kconfig symbols and a handful of header files. Create a header file for all this. This patch gives handle_guest_sea() a 'kvm_' prefix, and moves the declarations to kvm_ras.h as preparation for a future patch that moves the ACPI-specific RAS code out of mm/fault.c. Signed-off-by: James Morse <james.morse@arm.com> Reviewed-by: Punit Agrawal <punit.agrawal@arm.com> Acked-by: Marc Zyngier <marc.zyngier@arm.com> Tested-by: Tyler Baicar <tbaicar@codeaurora.org> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'virt')
-rw-r--r--virt/kvm/arm/mmu.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/virt/kvm/arm/mmu.c b/virt/kvm/arm/mmu.c
index fbdf3ac2f001..600e0cc74ea4 100644
--- a/virt/kvm/arm/mmu.c
+++ b/virt/kvm/arm/mmu.c
@@ -27,10 +27,10 @@
#include <asm/kvm_arm.h>
#include <asm/kvm_mmu.h>
#include <asm/kvm_mmio.h>
+#include <asm/kvm_ras.h>
#include <asm/kvm_asm.h>
#include <asm/kvm_emulate.h>
#include <asm/virt.h>
-#include <asm/system_misc.h>
#include "trace.h"
@@ -1903,7 +1903,7 @@ int kvm_handle_guest_abort(struct kvm_vcpu *vcpu, struct kvm_run *run)
* For RAS the host kernel may handle this abort.
* There is no need to pass the error into the guest.
*/
- if (!handle_guest_sea(fault_ipa, kvm_vcpu_get_hsr(vcpu)))
+ if (!kvm_handle_guest_sea(fault_ipa, kvm_vcpu_get_hsr(vcpu)))
return 1;
if (unlikely(!is_iabt)) {