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[Qemu-devel] [PULL 11/15] hw/scsi/lsi53c895a: add support for additional
From: |
Paolo Bonzini |
Subject: |
[Qemu-devel] [PULL 11/15] hw/scsi/lsi53c895a: add support for additional diag / debug registers |
Date: |
Wed, 14 Jan 2015 10:41:28 +0100 |
From: Peter Lieven <address@hidden>
Some ancient Linux kernels read from registers 0x09 and 0x3c-3f during
boot. According to the spec these registers are for diag and debug
purposes only. If they are absend qemu aborts on read.
Signed-off-by: Peter Lieven <address@hidden>
Signed-off-by: Paolo Bonzini <address@hidden>
---
hw/scsi/lsi53c895a.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/hw/scsi/lsi53c895a.c b/hw/scsi/lsi53c895a.c
index ec92048..db7d4b8 100644
--- a/hw/scsi/lsi53c895a.c
+++ b/hw/scsi/lsi53c895a.c
@@ -277,6 +277,7 @@ typedef struct {
uint32_t csbc;
uint32_t scratch[18]; /* SCRATCHA-SCRATCHR */
uint8_t sbr;
+ uint32_t adder;
/* Script ram is stored as 32-bit words in host byteorder. */
uint32_t script_ram[2048];
@@ -1389,6 +1390,7 @@ again:
switch ((insn >> 27) & 7) {
case 0: /* Jump */
DPRINTF("Jump to 0x%08x\n", addr);
+ s->adder = addr;
s->dsp = addr;
break;
case 1: /* Call */
@@ -1513,6 +1515,8 @@ static uint8_t lsi_reg_readb(LSIState *s, int offset)
return 0x7f;
case 0x08: /* Revision ID */
return 0x00;
+ case 0x09: /* SOCL */
+ return s->socl;
case 0xa: /* SSID */
return s->ssid;
case 0xb: /* SBCL */
@@ -1577,6 +1581,8 @@ static uint8_t lsi_reg_readb(LSIState *s, int offset)
return s->sbr;
case 0x3b: /* DCNTL */
return s->dcntl;
+ /* ADDER Output (Debug of relative jump address) */
+ CASE_GET_REG32(adder, 0x3c)
case 0x40: /* SIEN0 */
return s->sien0;
case 0x41: /* SIEN1 */
--
1.8.3.1
- [Qemu-devel] [PULL 08/15] target-i386: fix movntsd on big-endian hosts, (continued)
- [Qemu-devel] [PULL 08/15] target-i386: fix movntsd on big-endian hosts, Paolo Bonzini, 2015/01/14
- [Qemu-devel] [PULL 07/15] vl.c: fix regression when reading memory size from config file, Paolo Bonzini, 2015/01/14
- [Qemu-devel] [PULL 04/15] vl: Avoid unnecessary 'if' nesting, Paolo Bonzini, 2015/01/14
- [Qemu-devel] [PULL 01/15] char: restore stdio echo on resume from suspend., Paolo Bonzini, 2015/01/14
- [Qemu-devel] [PULL 09/15] target-i386: do not memcpy in and out of xmm_regs, Paolo Bonzini, 2015/01/14
- [Qemu-devel] [PULL 10/15] qemu-common.h: optimise muldiv64 if int128 is available, Paolo Bonzini, 2015/01/14
- [Qemu-devel] [PULL 14/15] qemu-timer: rename timer_init to timer_init_tl, Paolo Bonzini, 2015/01/14
- [Qemu-devel] [PULL 15/15] cpus: consistently use QEMU_CLOCK_VIRTUAL_RT for icount_warp_rt timer, Paolo Bonzini, 2015/01/14
- [Qemu-devel] [PULL 13/15] scsi: fix cancellation when I/O was completed but DMA was not., Paolo Bonzini, 2015/01/14
- [Qemu-devel] [PULL 06/15] vl: Don't silently change topology when all -smp options were set, Paolo Bonzini, 2015/01/14
- [Qemu-devel] [PULL 11/15] hw/scsi/lsi53c895a: add support for additional diag / debug registers,
Paolo Bonzini <=
- [Qemu-devel] [PULL 12/15] rules.mak: Fix module build, Paolo Bonzini, 2015/01/14
- Re: [Qemu-devel] [PULL 00/15] Misc patches for 2015-01-14, Peter Maydell, 2015/01/14