Commit 923c53ca authored by Paul Mackerras's avatar Paul Mackerras Committed by Avi Kivity

powerpc: Set up LPCR for running guest partitions

In hypervisor mode, the LPCR controls several aspects of guest
partitions, including virtual partition memory mode, and also controls
whether the hypervisor decrementer interrupts are enabled.  This sets
up LPCR at boot time so that guest partitions will use a virtual real
memory area (VRMA) composed of 16MB large pages, and hypervisor
decrementer interrupts are disabled.
Signed-off-by: default avatarPaul Mackerras <paulus@samba.org>
Signed-off-by: default avatarAlexander Graf <agraf@suse.de>
parent df6909e5
...@@ -232,10 +232,12 @@ ...@@ -232,10 +232,12 @@
#define LPCR_VPM0 (1ul << (63-0)) #define LPCR_VPM0 (1ul << (63-0))
#define LPCR_VPM1 (1ul << (63-1)) #define LPCR_VPM1 (1ul << (63-1))
#define LPCR_ISL (1ul << (63-2)) #define LPCR_ISL (1ul << (63-2))
#define LPCR_VC_SH (63-2)
#define LPCR_DPFD_SH (63-11) #define LPCR_DPFD_SH (63-11)
#define LPCR_VRMA_L (1ul << (63-12)) #define LPCR_VRMA_L (1ul << (63-12))
#define LPCR_VRMA_LP0 (1ul << (63-15)) #define LPCR_VRMA_LP0 (1ul << (63-15))
#define LPCR_VRMA_LP1 (1ul << (63-16)) #define LPCR_VRMA_LP1 (1ul << (63-16))
#define LPCR_VRMASD_SH (63-16)
#define LPCR_RMLS 0x1C000000 /* impl dependent rmo limit sel */ #define LPCR_RMLS 0x1C000000 /* impl dependent rmo limit sel */
#define LPCR_ILE 0x02000000 /* !HV irqs set MSR:LE */ #define LPCR_ILE 0x02000000 /* !HV irqs set MSR:LE */
#define LPCR_PECE 0x00007000 /* powersave exit cause enable */ #define LPCR_PECE 0x00007000 /* powersave exit cause enable */
...@@ -243,8 +245,10 @@ ...@@ -243,8 +245,10 @@
#define LPCR_PECE1 0x00002000 /* decrementer can cause exit */ #define LPCR_PECE1 0x00002000 /* decrementer can cause exit */
#define LPCR_PECE2 0x00001000 /* machine check etc can cause exit */ #define LPCR_PECE2 0x00001000 /* machine check etc can cause exit */
#define LPCR_MER 0x00000800 /* Mediated External Exception */ #define LPCR_MER 0x00000800 /* Mediated External Exception */
#define LPCR_LPES 0x0000000c
#define LPCR_LPES0 0x00000008 /* LPAR Env selector 0 */ #define LPCR_LPES0 0x00000008 /* LPAR Env selector 0 */
#define LPCR_LPES1 0x00000004 /* LPAR Env selector 1 */ #define LPCR_LPES1 0x00000004 /* LPAR Env selector 1 */
#define LPCR_LPES_SH 2
#define LPCR_RMI 0x00000002 /* real mode is cache inhibit */ #define LPCR_RMI 0x00000002 /* real mode is cache inhibit */
#define LPCR_HDICE 0x00000001 /* Hyp Decr enable (HV,PR,EE) */ #define LPCR_HDICE 0x00000001 /* Hyp Decr enable (HV,PR,EE) */
#define SPRN_LPID 0x13F /* Logical Partition Identifier */ #define SPRN_LPID 0x13F /* Logical Partition Identifier */
......
...@@ -61,19 +61,23 @@ __init_LPCR: ...@@ -61,19 +61,23 @@ __init_LPCR:
* LPES = 0b01 (HSRR0/1 used for 0x500) * LPES = 0b01 (HSRR0/1 used for 0x500)
* PECE = 0b111 * PECE = 0b111
* DPFD = 4 * DPFD = 4
* HDICE = 0
* VC = 0b100 (VPM0=1, VPM1=0, ISL=0)
* VRMASD = 0b10000 (L=1, LP=00)
* *
* Other bits untouched for now * Other bits untouched for now
*/ */
mfspr r3,SPRN_LPCR mfspr r3,SPRN_LPCR
ori r3,r3,(LPCR_LPES0|LPCR_LPES1) li r5,1
xori r3,r3, LPCR_LPES0 rldimi r3,r5, LPCR_LPES_SH, 64-LPCR_LPES_SH-2
ori r3,r3,(LPCR_PECE0|LPCR_PECE1|LPCR_PECE2) ori r3,r3,(LPCR_PECE0|LPCR_PECE1|LPCR_PECE2)
li r5,7
sldi r5,r5,LPCR_DPFD_SH
andc r3,r3,r5
li r5,4 li r5,4
sldi r5,r5,LPCR_DPFD_SH rldimi r3,r5, LPCR_DPFD_SH, 64-LPCR_DPFD_SH-3
or r3,r3,r5 clrrdi r3,r3,1 /* clear HDICE */
li r5,4
rldimi r3,r5, LPCR_VC_SH, 0
li r5,0x10
rldimi r3,r5, LPCR_VRMASD_SH, 64-LPCR_VRMASD_SH-5
mtspr SPRN_LPCR,r3 mtspr SPRN_LPCR,r3
isync isync
blr blr
......
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