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Commit eeb24de4 authored by Anton Blanchard's avatar Anton Blanchard Committed by Linus Torvalds
Browse files

[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: default avatarAnton Blanchard <anton@samba.org>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent c4005e4f

arch/ppc64/kernel/pSeries_hvCall.S

+8 −0
Original line number Diff line number Diff line
@@ -28,6 +28,8 @@ 
			unsigned long *out3);		R10

 */

_GLOBAL(plpar_hcall)

	HMT_MEDIUM



	mfcr	r0



	std	r8,STK_PARM(r8)(r1)	/* Save out ptrs */
@@ -53,6 +55,8 @@ _GLOBAL(plpar_hcall) 


/* Simple interface with no output values (other than status) */

_GLOBAL(plpar_hcall_norets)

	HMT_MEDIUM



	mfcr	r0

	stw	r0,8(r1)
@@ -75,6 +79,8 @@ _GLOBAL(plpar_hcall_norets) 
			unsigned long *out1);		120(R1)

 */

_GLOBAL(plpar_hcall_8arg_2ret)

	HMT_MEDIUM



	mfcr	r0

	ld	r11,STK_PARM(r11)(r1)	/* put arg8 in R11 */

	stw	r0,8(r1)
@@ -99,6 +105,8 @@ _GLOBAL(plpar_hcall_8arg_2ret) 
		 	unsigned long *out4);		112(R1)

 */

_GLOBAL(plpar_hcall_4out)

	HMT_MEDIUM



	mfcr	r0

	stw	r0,8(r1)