From a7f65ceb851af5a5b639c6e30801076d848db2c2 Mon Sep 17 00:00:00 2001 From: Simon Veith Date: Fri, 20 Dec 2019 14:03:00 +0000 Subject: hw/arm/smmuv3: Use correct bit positions in EVT_SET_ADDR2 macro The bit offsets in the EVT_SET_ADDR2 macro do not match those specified in the ARM SMMUv3 Architecture Specification. In all events that use this macro, e.g. F_WALK_EABT, the faulting fetch address or IPA actually occupies the 32-bit words 6 and 7 in the event record contiguously, with the upper and lower unused bits clear due to alignment or maximum supported address bits. How many bits are clear depends on the individual event type. Update the macro to write to the correct words in the event record so that guest drivers can obtain accurate address information on events. ref. ARM IHI 0070C, sections 7.3.12 through 7.3.16. Signed-off-by: Simon Veith Acked-by: Eric Auger Tested-by: Eric Auger Message-id: 1576509312-13083-6-git-send-email-sveith@amazon.de Cc: Eric Auger Cc: qemu-devel@nongnu.org Cc: qemu-arm@nongnu.org Acked-by: Eric Auger Reviewed-by: Peter Maydell Signed-off-by: Peter Maydell --- hw/arm/smmuv3-internal.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/hw/arm/smmuv3-internal.h b/hw/arm/smmuv3-internal.h index 042b435808..4112394129 100644 --- a/hw/arm/smmuv3-internal.h +++ b/hw/arm/smmuv3-internal.h @@ -461,8 +461,8 @@ typedef struct SMMUEventInfo { } while (0) #define EVT_SET_ADDR2(x, addr) \ do { \ - (x)->word[7] = deposit32((x)->word[7], 3, 29, addr >> 16); \ - (x)->word[7] = deposit32((x)->word[7], 0, 16, addr & 0xffff);\ + (x)->word[7] = (uint32_t)(addr >> 32); \ + (x)->word[6] = (uint32_t)(addr & 0xffffffff); \ } while (0) void smmuv3_record_event(SMMUv3State *s, SMMUEventInfo *event); -- cgit v1.2.3