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KVM: PPC: Book3S: Add MMIO emulation for VMX instructions

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This patch provides the MMIO load/store vector indexed
X-Form emulation.

Instructions implemented:
lvx: the quadword in storage addressed by the result of EA &
0xffff_ffff_ffff_fff0 is loaded into VRT.

stvx: the contents of VRS are stored into the quadword in storage
addressed by the result of EA & 0xffff_ffff_ffff_fff0.

Reported-by: Gopesh Kumar Chaudhary <gopchaud@in.ibm.com>
Reported-by: Balamuruhan S <bala24@linux.vnet.ibm.com>
Signed-off-by: Jose Ricardo Ziviani <joserz@linux.vnet.ibm.com>
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
This commit is contained in:
Jose Ricardo Ziviani
2018-02-03 18:24:26 -02:00
committed by Paul Mackerras
parent d20fe50a7b
commit 09f984961c
5 changed files with 198 additions and 0 deletions
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6
arch/powerpc/include/asm/ppc-opcode.h
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@@ -156,6 +156,12 @@
#define OP_31_XOP_LFDX 599
#define OP_31_XOP_LFDUX 631
/* VMX Vector Load Instructions */
#define OP_31_XOP_LVX 103
/* VMX Vector Store Instructions */
#define OP_31_XOP_STVX 231
#define OP_LWZ 32
#define OP_STFS 52
#define OP_STFSU 53