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target/ppc: Handle NMI guest exit

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Memory error such as bit flips that cannot be corrected
by hardware are passed on to the kernel for handling.
If the memory address in error belongs to guest then
the guest kernel is responsible for taking suitable action.
Patch [1] enhances KVM to exit guest with exit reason
set to KVM_EXIT_NMI in such cases. This patch handles
KVM_EXIT_NMI exit.

[1] https://www.spinics.net/lists/kvm-ppc/msg12637.html
    (e20bbd3d and related commits)

Signed-off-by: Aravinda Prasad <arawinda.p@gmail.com>
Signed-off-by: Ganesh Goudar <ganeshgr@linux.ibm.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Greg Kurz <groug@kaod.org>
Message-Id: <20200130184423.20519-4-ganeshgr@linux.ibm.com>
[dwg: #ifdefs to fix compile for 32-bit target]
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Aravinda Prasad 2020-01-31 00:14:19 +05:30 • committed by David Gibson
parent 9d953ce447
commit 9ac703ac5f
6 changed files with 76 additions and 0 deletions
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target/ppc/trace-events
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@ -28,3 +28,4 @@ kvm_handle_papr_hcall(void) "handle PAPR hypercall"
kvm_handle_epr(void) "handle epr"
kvm_handle_watchdog_expiry(void) "handle watchdog expiry"
kvm_handle_debug_exception(void) "handle debug exception"
kvm_handle_nmi_exception(void) "handle NMI exception"