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| author | Hervé Poussineau <hpoussin@reactos.org> | 2016-08-18 09:31:27 +0200 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2016-09-13 19:08:45 +0200 |
| commit | 85a20bc4206689dc27668a14b170837a9cbaa0c4 (patch) | |
| tree | 02fb982fd6024fd0c47cafed37b3972c602fd29e /hw | |
| parent | 64eb7491d314dea6185c56d9b8feaa60bc3e1ce2 (diff) | |
| download | qemu-85a20bc4206689dc27668a14b170837a9cbaa0c4.zip qemu-85a20bc4206689dc27668a14b170837a9cbaa0c4.tar.gz qemu-85a20bc4206689dc27668a14b170837a9cbaa0c4.tar.bz2 | |
lsi: do not exit QEMU if reading invalid register
When guest accesses invalid register, return 0xff instead of exiting.
Also add a log when reading or writing invalid registers.
Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
Message-Id: <1471505489-1221-3-git-send-email-hpoussin@reactos.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
Diffstat (limited to 'hw')
| -rw-r--r-- | hw/scsi/lsi53c895a.c | 18 |
1 files changed, 13 insertions, 5 deletions
diff --git a/hw/scsi/lsi53c895a.c b/hw/scsi/lsi53c895a.c index 07dc73a..9d2e3eb 100644 --- a/hw/scsi/lsi53c895a.c +++ b/hw/scsi/lsi53c895a.c @@ -19,6 +19,7 @@ #include "hw/pci/pci.h" #include "hw/scsi/scsi.h" #include "sysemu/dma.h" +#include "qemu/log.h" //#define DEBUG_LSI //#define DEBUG_LSI_REG @@ -34,7 +35,6 @@ do { fprintf(stderr, "lsi_scsi: error: " fmt , ## __VA_ARGS__); exit(1);} while do { fprintf(stderr, "lsi_scsi: error: " fmt , ## __VA_ARGS__);} while (0) #endif -#ifdef DEBUG_LSI_REG static const char *names[] = { "SCNTL0", "SCNTL1", "SCNTL2", "SCNTL3", "SCID", "SXFER", "SDID", "GPREG", "SFBR", "SOCL", "SSID", "SBCL", "DSTAT", "SSTAT0", "SSTAT1", "SSTAT2", @@ -49,7 +49,6 @@ static const char *names[] = { "SIDL", "0x51", "0x52", "0x53", "SODL", "0x55", "0x56", "0x57", "SBDL", "0x59", "0x5a", "0x5b", "SCRATCHB0", "SCRATCHB1", "SCRATCHB2", "SCRATCHB3", }; -#endif #define LSI_MAX_DEVS 7 @@ -1715,8 +1714,14 @@ static uint8_t lsi_reg_readb(LSIState *s, int offset) break; } default: - BADF("readb 0x%x\n", offset); - exit(1); + { + qemu_log_mask(LOG_GUEST_ERROR, + "lsi_scsi: invalid read from reg %s %x\n", + offset < ARRAY_SIZE(names) ? names[offset] : "???", + offset); + ret = 0xff; + break; + } } #undef CASE_GET_REG24 #undef CASE_GET_REG32 @@ -1959,7 +1964,10 @@ static void lsi_reg_writeb(LSIState *s, int offset, uint8_t val) shift = (offset & 3) * 8; s->scratch[n] = deposit32(s->scratch[n], shift, 8, val); } else { - BADF("Unhandled writeb 0x%x = 0x%x\n", offset, val); + qemu_log_mask(LOG_GUEST_ERROR, + "lsi_scsi: invalid write to reg %s %x (0x%02x)\n", + offset < ARRAY_SIZE(names) ? names[offset] : "???", + offset, val); } } #undef CASE_SET_REG24 |