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From: | Robert Reif |
Subject: | Re: [Qemu-devel] [RFC][PATCH] fix sparc32 mxcc 64 bit read word order |
Date: | Sun, 18 Nov 2007 15:57:25 -0500 |
User-agent: | Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.4.2) Gecko/20040308 |
Blue Swirl wrote:
This is a classic case of two wrongs make a right. OpenBios need to be fixed to set mbus module id to start at 8, not 0 for mbus based machines.On 11/16/07, Robert Reif <address@hidden> wrote:This patch fixes the word order for 64 bit reads of the mxcc registers.Otherwise everything seems OK, but it breaks NetBSD version 3 on SS10: clock0 at obio0 slot 0 offset 0x200000: mk48t08 timer0 at obio0 slot 0 offset 0x300000data fault: pc=0xf0111a0c addr=0x0 sfsr=126<PERR=0,LVL=1,AT=1,FT=1,FAV,OW> panic: kernel fault halted halt, power off Without the patch I get: clock0 at obio0 slot 0 offset 0x200000: mk48t08 timer0 at obio0 slot 0 offset 0x300000: delay constant 99 zs0 at obio0 slot 0 offset 0x100000 level 12 softpri 6 zstty0 at zs0 channel 0 (console i/o) zstty1 at zs0 channel 1 scsi-disk: Unsupported command length, command 79
Index: drivers/obio.c =================================================================== --- drivers/obio.c (revision 178) +++ drivers/obio.c (working copy) @@ -891,7 +891,15 @@ push_str("cache-coherence?"); fword("property"); - PUSH(i); + switch (machine_id) { + case 0x71: + case 0x72: + PUSH(i + 8); + break; + case 0x80: + PUSH(i); + break; + } fword("encode-int"); push_str("mid"); fword("property");
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