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x86: Change proliant io emulation stub to use pushf/popf instead of pushfw/popfw.
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
This commit is contained in:
Keir Fraser committed
1 parent
680ecb44da
commit
1fcd46b927
1 file changed
+12
-14
@@ -22,26 +22,24 @@ static void ioemul_handle_proliant_quirk(
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if ( (opcode != 0xee) || (port != 0xcd4) || !(value & 0x80) )
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return;
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/* pushfw */
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io_emul_stub[ 0] = 0x66;
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io_emul_stub[ 1] = 0x9c;
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/* pushf */
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io_emul_stub[0] = 0x9c;
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/* cli */
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io_emul_stub[ 2] = 0xfa;
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io_emul_stub[1] = 0xfa;
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/* out %al,%dx */
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io_emul_stub[ 3] = 0xee;
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io_emul_stub[2] = 0xee;
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/* 1: in %dx,%al */
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io_emul_stub[ 4] = 0xec;
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io_emul_stub[3] = 0xec;
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/* test $0x80,%al */
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io_emul_stub[ 5] = 0xa8;
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io_emul_stub[ 6] = 0x80;
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io_emul_stub[4] = 0xa8;
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io_emul_stub[5] = 0x80;
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/* jnz 1b */
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io_emul_stub[ 7] = 0x75;
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io_emul_stub[ 8] = 0xfb;
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/* popfw */
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io_emul_stub[ 9] = 0x66;
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io_emul_stub[10] = 0x9d;
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io_emul_stub[6] = 0x75;
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io_emul_stub[7] = 0xfb;
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/* popf */
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io_emul_stub[8] = 0x9d;
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/* ret */
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io_emul_stub[11] = 0xc3;
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io_emul_stub[9] = 0xc3;
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}
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int __init proliant_quirk(struct dmi_system_id *d)
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