diff options
author | Anton Blanchard <anton@samba.org> | 2005-05-01 11:58:46 -0400 |
---|---|---|
committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-05-01 11:58:46 -0400 |
commit | eeb24de431ac8c80fd13a2c479cd0eb51b70484e (patch) | |
tree | 00d5548ba1f4a441cc4386ec8bff924bcc33d722 /arch | |
parent | c4005e4f661a9ec8d91720a6b570865d060afcaf (diff) |
[PATCH] ppc64: enforce medium thread priority in hypervisor calls
Calls into the hypervisor do not raise the thread priority. Ensure we are
running at medium priority upon entry to the hypervisor.
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch')
-rw-r--r-- | arch/ppc64/kernel/pSeries_hvCall.S | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/ppc64/kernel/pSeries_hvCall.S b/arch/ppc64/kernel/pSeries_hvCall.S index 0715d3038019..176e8da76466 100644 --- a/arch/ppc64/kernel/pSeries_hvCall.S +++ b/arch/ppc64/kernel/pSeries_hvCall.S | |||
@@ -28,6 +28,8 @@ | |||
28 | unsigned long *out3); R10 | 28 | unsigned long *out3); R10 |
29 | */ | 29 | */ |
30 | _GLOBAL(plpar_hcall) | 30 | _GLOBAL(plpar_hcall) |
31 | HMT_MEDIUM | ||
32 | |||
31 | mfcr r0 | 33 | mfcr r0 |
32 | 34 | ||
33 | std r8,STK_PARM(r8)(r1) /* Save out ptrs */ | 35 | std r8,STK_PARM(r8)(r1) /* Save out ptrs */ |
@@ -53,6 +55,8 @@ _GLOBAL(plpar_hcall) | |||
53 | 55 | ||
54 | /* Simple interface with no output values (other than status) */ | 56 | /* Simple interface with no output values (other than status) */ |
55 | _GLOBAL(plpar_hcall_norets) | 57 | _GLOBAL(plpar_hcall_norets) |
58 | HMT_MEDIUM | ||
59 | |||
56 | mfcr r0 | 60 | mfcr r0 |
57 | stw r0,8(r1) | 61 | stw r0,8(r1) |
58 | 62 | ||
@@ -75,6 +79,8 @@ _GLOBAL(plpar_hcall_norets) | |||
75 | unsigned long *out1); 120(R1) | 79 | unsigned long *out1); 120(R1) |
76 | */ | 80 | */ |
77 | _GLOBAL(plpar_hcall_8arg_2ret) | 81 | _GLOBAL(plpar_hcall_8arg_2ret) |
82 | HMT_MEDIUM | ||
83 | |||
78 | mfcr r0 | 84 | mfcr r0 |
79 | ld r11,STK_PARM(r11)(r1) /* put arg8 in R11 */ | 85 | ld r11,STK_PARM(r11)(r1) /* put arg8 in R11 */ |
80 | stw r0,8(r1) | 86 | stw r0,8(r1) |
@@ -99,6 +105,8 @@ _GLOBAL(plpar_hcall_8arg_2ret) | |||
99 | unsigned long *out4); 112(R1) | 105 | unsigned long *out4); 112(R1) |
100 | */ | 106 | */ |
101 | _GLOBAL(plpar_hcall_4out) | 107 | _GLOBAL(plpar_hcall_4out) |
108 | HMT_MEDIUM | ||
109 | |||
102 | mfcr r0 | 110 | mfcr r0 |
103 | stw r0,8(r1) | 111 | stw r0,8(r1) |
104 | 112 | ||