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target/ppc/POWER9: Adapt LPCR handling for POWER9 

The logical partitioning control register controls a threads operation
based on the partition it is currently executing. Add new definitions and
update the mask used when writing to the LPCR based on the POWER9 spec.

Signed-off-by: Suraj Jitindar Singh <sjitindarsingh@gmail.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Suraj Jitindar Singh 2017-02-10 16:25:53 +11:00 committed by David Gibson
parent 86cf1e9fe8
commit 18aa49ecf4
3 changed files with 44 additions and 6 deletions
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18
target/ppc/cpu.h
View File

@ -384,12 +384,19 @@ struct ppc_slb_t {
#define LPCR_DPFD (0x7ull << LPCR_DPFD_SHIFT)
#define LPCR_VRMASD_SHIFT (63 - 16)
#define LPCR_VRMASD (0x1full << LPCR_VRMASD_SHIFT)
/* P9: Power-saving mode Exit Cause Enable (Upper Section) Mask */
#define LPCR_PECE_U_SHIFT (63 - 19)
#define LPCR_PECE_U_MASK (0x7ull << LPCR_PECE_U_SHIFT)
#define LPCR_HVEE (1ull << (63 - 17)) /* Hypervisor Virt Exit Enable */
#define LPCR_RMLS_SHIFT (63 - 37)
#define LPCR_RMLS (0xfull << LPCR_RMLS_SHIFT)
#define LPCR_ILE (1ull << (63 - 38))
#define LPCR_AIL_SHIFT (63 - 40) /* Alternate interrupt location */
#define LPCR_AIL (3ull << LPCR_AIL_SHIFT)
#define LPCR_UPRT (1ull << (63 - 41)) /* Use Process Table */
#define LPCR_EVIRT (1ull << (63 - 42)) /* Enhanced Virtualisation */
#define LPCR_ONL (1ull << (63 - 45))
#define LPCR_LD (1ull << (63 - 46)) /* Large Decrementer */
#define LPCR_P7_PECE0 (1ull << (63 - 49))
#define LPCR_P7_PECE1 (1ull << (63 - 50))
#define LPCR_P7_PECE2 (1ull << (63 - 51))
@ -398,11 +405,22 @@ struct ppc_slb_t {
#define LPCR_P8_PECE2 (1ull << (63 - 49))
#define LPCR_P8_PECE3 (1ull << (63 - 50))
#define LPCR_P8_PECE4 (1ull << (63 - 51))
/* P9: Power-saving mode Exit Cause Enable (Lower Section) Mask */
#define LPCR_PECE_L_SHIFT (63 - 51)
#define LPCR_PECE_L_MASK (0x1full << LPCR_PECE_L_SHIFT)
#define LPCR_PDEE (1ull << (63 - 47)) /* Privileged Doorbell Exit EN */
#define LPCR_HDEE (1ull << (63 - 48)) /* Hyperv Doorbell Exit Enable */
#define LPCR_EEE (1ull << (63 - 49)) /* External Exit Enable */
#define LPCR_DEE (1ull << (63 - 50)) /* Decrementer Exit Enable */
#define LPCR_OEE (1ull << (63 - 51)) /* Other Exit Enable */
#define LPCR_MER (1ull << (63 - 52))
#define LPCR_GTSE (1ull << (63 - 53)) /* Guest Translation Shootdown */
#define LPCR_TC (1ull << (63 - 54))
#define LPCR_HEIC (1ull << (63 - 59)) /* HV Extern Interrupt Control */
#define LPCR_LPES0 (1ull << (63 - 60))
#define LPCR_LPES1 (1ull << (63 - 61))
#define LPCR_RMI (1ull << (63 - 62))
#define LPCR_HVICE (1ull << (63 - 62)) /* HV Virtualisation Int Enable */
#define LPCR_HDICE (1ull << (63 - 63))
#define msr_sf ((env->msr >> MSR_SF) & 1)

8
target/ppc/mmu-hash64.c
View File

@ -1062,6 +1062,14 @@ void helper_store_lpcr(CPUPPCState *env, target_ulong val)
LPCR_P8_PECE2 | LPCR_P8_PECE3 | LPCR_P8_PECE4 |
LPCR_MER | LPCR_TC | LPCR_LPES0 | LPCR_HDICE);
break;
case POWERPC_MMU_3_00: /* P9 */
lpcr = val & (LPCR_VPM1 | LPCR_ISL | LPCR_KBV | LPCR_DPFD |
(LPCR_PECE_U_MASK & LPCR_HVEE) | LPCR_ILE | LPCR_AIL |
LPCR_UPRT | LPCR_EVIRT | LPCR_ONL |
(LPCR_PECE_L_MASK & (LPCR_PDEE | LPCR_HDEE | LPCR_EEE |
LPCR_DEE | LPCR_OEE)) | LPCR_MER | LPCR_GTSE | LPCR_TC |
LPCR_HEIC | LPCR_LPES0 | LPCR_HVICE | LPCR_HDICE);
break;
default:
;
}

24
target/ppc/translate_init.c
View File

@ -8870,12 +8870,24 @@ void cpu_ppc_set_papr(PowerPCCPU *cpu)
lpcr->default_value &= ~LPCR_RMLS;
lpcr->default_value |= 1ull << LPCR_RMLS_SHIFT;
/* P7 and P8 has slightly different PECE bits, mostly because P8 adds
* bit 47 and 48 which are reserved on P7. Here we set them all, which
* will work as expected for both implementations
*/
lpcr->default_value |= LPCR_P8_PECE0 | LPCR_P8_PECE1 | LPCR_P8_PECE2 |
LPCR_P8_PECE3 | LPCR_P8_PECE4;
switch (env->mmu_model) {
case POWERPC_MMU_3_00:
/* By default we choose legacy mode and switch to new hash or radix
* when a register process table hcall is made. So disable process
* tables and guest translation shootdown by default
*/
lpcr->default_value &= ~(LPCR_UPRT | LPCR_GTSE);
lpcr->default_value |= LPCR_PDEE | LPCR_HDEE | LPCR_EEE | LPCR_DEE |
LPCR_OEE;
break;
default:
/* P7 and P8 has slightly different PECE bits, mostly because P8 adds
* bit 47 and 48 which are reserved on P7. Here we set them all, which
* will work as expected for both implementations
*/
lpcr->default_value |= LPCR_P8_PECE0 | LPCR_P8_PECE1 | LPCR_P8_PECE2 |
LPCR_P8_PECE3 | LPCR_P8_PECE4;
}
/* We should be followed by a CPU reset but update the active value
* just in case...