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authorHarsh Prateek Bora <harshpb@linux.ibm.com>2024-03-08 16:49:32 +0530
committerNicholas Piggin <npiggin@gmail.com>2024-03-13 02:47:04 +1000
commit71c33ef000b690f0b5c40b6f2a2898575b2bf3f9 (patch)
tree823a73c7f7a5cd697a42ba876070a1a3374af23b /include/hw/ppc
parent195bd175fc8d498f1c056a72c06ba511d554ad75 (diff)
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spapr: nested: Introduce H_GUEST_[GET|SET]_CAPABILITIES hcalls.
Introduce the nested PAPR hcalls: - H_GUEST_GET_CAPABILITIES which is used to query the capabilities of the API and the L2 guests it provides. - H_GUEST_SET_CAPABILITIES which is used to set the Guest API capabilities that the Host Partition supports and may use. [amachhiw: support for p9 compat mode and return register bug fixes] Reviewed-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Neuling <mikey@neuling.org> Signed-off-by: Amit Machhiwal <amachhiw@linux.vnet.ibm.com> Signed-off-by: Harsh Prateek Bora <harshpb@linux.ibm.com> Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Diffstat (limited to 'include/hw/ppc')
-rw-r--r--include/hw/ppc/spapr.h7
-rw-r--r--include/hw/ppc/spapr_nested.h12
2 files changed, 18 insertions, 1 deletions
diff --git a/include/hw/ppc/spapr.h b/include/hw/ppc/spapr.h
index 0eb01ea..2906d59 100644
--- a/include/hw/ppc/spapr.h
+++ b/include/hw/ppc/spapr.h
@@ -364,6 +364,7 @@ struct SpaprMachineState {
#define H_NOOP -63
#define H_UNSUPPORTED -67
#define H_OVERLAP -68
+#define H_STATE -75
#define H_UNSUPPORTED_FLAG -256
#define H_MULTI_THREADS_ACTIVE -9005
@@ -583,8 +584,10 @@ struct SpaprMachineState {
#define H_RPT_INVALIDATE 0x448
#define H_SCM_FLUSH 0x44C
#define H_WATCHDOG 0x45C
+#define H_GUEST_GET_CAPABILITIES 0x460
+#define H_GUEST_SET_CAPABILITIES 0x464
-#define MAX_HCALL_OPCODE H_WATCHDOG
+#define MAX_HCALL_OPCODE H_GUEST_SET_CAPABILITIES
/* The hcalls above are standardized in PAPR and implemented by pHyp
* as well.
@@ -1033,5 +1036,7 @@ void spapr_watchdog_init(SpaprMachineState *spapr);
void spapr_register_nested_hv(void);
void spapr_unregister_nested_hv(void);
void spapr_nested_reset(SpaprMachineState *spapr);
+void spapr_register_nested_papr(void);
+void spapr_unregister_nested_papr(void);
#endif /* HW_SPAPR_H */
diff --git a/include/hw/ppc/spapr_nested.h b/include/hw/ppc/spapr_nested.h
index bf3a7b8..73687e0 100644
--- a/include/hw/ppc/spapr_nested.h
+++ b/include/hw/ppc/spapr_nested.h
@@ -7,8 +7,20 @@ typedef struct SpaprMachineStateNested {
uint64_t ptcr;
uint8_t api;
#define NESTED_API_KVM_HV 1
+ bool capabilities_set;
+ uint32_t pvr_base;
} SpaprMachineStateNested;
+/* Nested PAPR API related macros */
+#define H_GUEST_CAPABILITIES_COPY_MEM 0x8000000000000000
+#define H_GUEST_CAPABILITIES_P9_MODE 0x4000000000000000
+#define H_GUEST_CAPABILITIES_P10_MODE 0x2000000000000000
+#define H_GUEST_CAP_VALID_MASK (H_GUEST_CAPABILITIES_P10_MODE | \
+ H_GUEST_CAPABILITIES_P9_MODE)
+#define H_GUEST_CAP_COPY_MEM_BMAP 0
+#define H_GUEST_CAP_P9_MODE_BMAP 1
+#define H_GUEST_CAP_P10_MODE_BMAP 2
+
/*
* Register state for entering a nested guest with H_ENTER_NESTED.
* New member must be added at the end.