linux-stable/arch/powerpc
Fabiano Rosas c1c8a66367 KVM: PPC: Book3s: mmio: Deliver DSI after emulation failure
MMIO emulation can fail if the guest uses an instruction that we are
not prepared to emulate. Since these instructions can be and most
likely are valid ones, this is (slightly) closer to an access fault
than to an illegal instruction, so deliver a Data Storage interrupt
instead of a Program interrupt.

BookE ignores bad faults, so it will keep using a Program interrupt
because a DSI would cause a fault loop in the guest.

Suggested-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Fabiano Rosas <farosas@linux.ibm.com>
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220125215655.1026224-6-farosas@linux.ibm.com
2022-01-31 13:43:00 +11:00
..
boot RTC for 5.17 2022-01-21 13:13:35 +02:00
configs RTC for 5.17 2022-01-21 13:13:35 +02:00
crypto powerpc updates for 5.17 2022-01-14 15:17:26 +01:00
include KVM: PPC: Book3S HV Nested: Fix nested HFSCR being clobbered with multiple vCPUs 2022-01-25 16:39:41 +11:00
kernel powerpc/64s/interrupt: Fix decrementer storm 2022-01-25 16:50:10 +11:00
kexec powerpc/kernel: Add __init attribute to eligible functions 2021-12-23 22:33:10 +11:00
kvm KVM: PPC: Book3s: mmio: Deliver DSI after emulation failure 2022-01-31 13:43:00 +11:00
lib powerpc/32: Fix boot failure with GCC latent entropy plugin 2021-12-23 22:36:58 +11:00
math-emu powerpc/64s: avoid reloading (H)SRR registers if they are still valid 2021-06-25 00:06:55 +10:00
mm powerpc/fixmap: Fix VM debug warning on unmap 2022-01-24 17:29:05 +11:00
net powerpc64/bpf: Limit 'ldbrx' to processors compliant with ISA v2.06 2022-01-15 12:21:25 +11:00
perf powerpc/perf: Fix power_pmu_disable to call clear_pmi_irq_pending only if PMI is pending 2022-01-24 17:31:15 +11:00
platforms bitmap patches for 5.17-rc1 2022-01-23 06:20:44 +02:00
purgatory powerpc/kexec: Don't use .machine ppc64 in trampoline_64.S 2021-04-08 21:17:43 +10:00
sysdev powerpc updates for 5.17 2022-01-14 15:17:26 +01:00
tools powerpc/head_check: Fix shellcheck errors 2021-08-17 22:52:02 +10:00
xmon powerpc/xmon: Dump XIVE information for online-only processors. 2022-01-06 21:47:00 +11:00
Kbuild kbuild: use more subdir- for visiting subdirectories while cleaning 2021-10-24 13:49:46 +09:00
Kconfig Merge branch 'akpm' (patches from Andrew) 2022-01-20 10:41:01 +02:00
Kconfig.debug powerpc/ptdump: Convert powerpc to GENERIC_PTDUMP 2021-08-25 13:35:48 +10:00
Makefile powerpc: check for support for -Wa,-m{power4,any} 2021-12-23 22:35:12 +11:00
Makefile.postlink