[Qemu-devel] [PULL 14/14] target/mips: Enable CP0_EBase.WG on MIPS64 CPUs

[Yongbok Kim]

From: James Hogan <address@hidden>

Enable the CP0_EBase.WG (write gate) on the I6400 and MIPS64R2-generic
CPUs. This allows 64-bit guests to run KVM itself, which uses
CP0_EBase.WG to point CP0_EBase at XKPhys.

Signed-off-by: James Hogan <address@hidden>
Cc: Yongbok Kim <address@hidden>
Cc: Aurelien Jarno <address@hidden>
Reviewed-by: Yongbok Kim <address@hidden>
Signed-off-by: Yongbok Kim <address@hidden>
---
 target/mips/translate_init.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/target/mips/translate_init.c b/target/mips/translate_init.c
index 741b390..255d25b 100644
--- a/target/mips/translate_init.c
+++ b/target/mips/translate_init.c
@@ -640,6 +640,7 @@ static const mips_def_t mips_defs[] =
         .SYNCI_Step = 32,
         .CCRes = 2,
         .CP0_Status_rw_bitmask = 0x36FBFFFF,
+        .CP0_EBaseWG_rw_bitmask = (1 << CP0EBase_WG),
         .CP1_fcr0 = (1 << FCR0_F64) | (1 << FCR0_3D) | (1 << FCR0_PS) |
                     (1 << FCR0_L) | (1 << FCR0_W) | (1 << FCR0_D) |
                     (1 << FCR0_S) | (0x00 << FCR0_PRID) | (0x0 << FCR0_REV),
@@ -723,6 +724,7 @@ static const mips_def_t mips_defs[] =
         .CP0_PageGrain = (1 << CP0PG_IEC) | (1 << CP0PG_XIE) |
                          (1U << CP0PG_RIE),
         .CP0_PageGrain_rw_bitmask = (1 << CP0PG_ELPA),
+        .CP0_EBaseWG_rw_bitmask = (1 << CP0EBase_WG),
         .CP1_fcr0 = (1 << FCR0_FREP) | (1 << FCR0_HAS2008) | (1 << FCR0_F64) |
                     (1 << FCR0_L) | (1 << FCR0_W) | (1 << FCR0_D) |
                     (1 << FCR0_S) | (0x03 << FCR0_PRID) | (0x0 << FCR0_REV),
-- 
2.7.4