[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[PATCH 14/15] ppc: spapr: Implement nested PAPR hcall - H_GUEST_DELETE
From: |
Harsh Prateek Bora |
Subject: |
[PATCH 14/15] ppc: spapr: Implement nested PAPR hcall - H_GUEST_DELETE |
Date: |
Tue, 18 Jul 2023 14:52:20 +0530 |
This hcall is used by L1 to delete a guest entry in L0 or can also be
used to delete all guests if needed (usually in shutdown scenarios).
Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Harsh Prateek Bora <harshpb@linux.ibm.com>
---
hw/ppc/spapr_nested.c | 32 ++++++++++++++++++++++++++++++++
include/hw/ppc/spapr_nested.h | 1 +
2 files changed, 33 insertions(+)
diff --git a/hw/ppc/spapr_nested.c b/hw/ppc/spapr_nested.c
index 3605f27115..5afdad4990 100644
--- a/hw/ppc/spapr_nested.c
+++ b/hw/ppc/spapr_nested.c
@@ -1692,6 +1692,37 @@ static void exit_process_output_buffer(PowerPCCPU *cpu,
return;
}
+static target_ulong h_guest_delete(PowerPCCPU *cpu,
+ SpaprMachineState *spapr,
+ target_ulong opcode,
+ target_ulong *args)
+{
+ target_ulong flags = args[0];
+ target_ulong lpid = args[1];
+ struct SpaprMachineStateNestedGuest *guest;
+
+ if (!spapr_get_cap(spapr, SPAPR_CAP_NESTED_PAPR)) {
+ return H_FUNCTION;
+ }
+
+ /* handle flag deleteAllGuests, remaining bits reserved */
+ if (flags & ~H_GUEST_DELETE_ALL_MASK) {
+ return H_UNSUPPORTED_FLAG;
+ } else if (flags & H_GUEST_DELETE_ALL_MASK) {
+ g_hash_table_destroy(spapr->nested.guests);
+ return H_SUCCESS;
+ }
+
+ guest = g_hash_table_lookup(spapr->nested.guests, GINT_TO_POINTER(lpid));
+ if (!guest) {
+ return H_P2;
+ }
+
+ g_hash_table_remove(spapr->nested.guests, GINT_TO_POINTER(lpid));
+
+ return H_SUCCESS;
+}
+
void spapr_register_nested(void)
{
spapr_register_hypercall(KVMPPC_H_SET_PARTITION_TABLE, h_set_ptbl);
@@ -1709,6 +1740,7 @@ void spapr_register_nested_phyp(void)
spapr_register_hypercall(H_GUEST_SET_STATE , h_guest_set_state);
spapr_register_hypercall(H_GUEST_GET_STATE , h_guest_get_state);
spapr_register_hypercall(H_GUEST_RUN_VCPU , h_guest_run_vcpu);
+ spapr_register_hypercall(H_GUEST_DELETE , h_guest_delete);
}
#else
diff --git a/include/hw/ppc/spapr_nested.h b/include/hw/ppc/spapr_nested.h
index ca5d28c06e..9eb43778ad 100644
--- a/include/hw/ppc/spapr_nested.h
+++ b/include/hw/ppc/spapr_nested.h
@@ -209,6 +209,7 @@
#define H_GUEST_GETSET_STATE_FLAG_GUEST_WIDE 0x8000000000000000 /* BE in GSB */
#define GUEST_STATE_REQUEST_GUEST_WIDE 0x1
#define GUEST_STATE_REQUEST_SET 0x2
+#define H_GUEST_DELETE_ALL_MASK 0x8000000000000000ULL
#define GUEST_STATE_ELEMENT(i, sz, s, f, ptr, c) { \
.id = (i), \
--
2.39.3
- [PATCH 03/15] ppc: spapr: Use SpaprMachineStateNested's ptcr instead of nested_ptcr, (continued)
- [PATCH 03/15] ppc: spapr: Use SpaprMachineStateNested's ptcr instead of nested_ptcr, Harsh Prateek Bora, 2023/07/18
- [PATCH 04/15] ppc: spapr: Start using nested.api for nested kvm-hv api, Harsh Prateek Bora, 2023/07/18
- [PATCH 05/15] ppc: spapr: Introduce cap-nested-papr for nested PAPR API, Harsh Prateek Bora, 2023/07/18
- [PATCH 06/15] ppc: spapr: Implement nested PAPR hcall - H_GUEST_GET_CAPABILITIES, Harsh Prateek Bora, 2023/07/18
- [PATCH 07/15] ppc: spapr: Implement nested PAPR hcall - H_GUEST_SET_CAPABILITIES, Harsh Prateek Bora, 2023/07/18
- [PATCH 08/15] ppc: spapr: Implement nested PAPR hcall - H_GUEST_CREATE, Harsh Prateek Bora, 2023/07/18
- [PATCH 09/15] ppc: spapr: Implement nested PAPR hcall - H_GUEST_CREATE_VCPU, Harsh Prateek Bora, 2023/07/18
- [PATCH 10/15] ppc: spapr: Initialize the GSB Elements lookup table., Harsh Prateek Bora, 2023/07/18
- [PATCH 11/15] ppc: spapr: Implement nested PAPR hcall - H_GUEST_[GET|SET]_STATE, Harsh Prateek Bora, 2023/07/18
- [PATCH 12/15] ppc: spapr: Use correct source for parttbl info for nested PAPR API., Harsh Prateek Bora, 2023/07/18
- [PATCH 14/15] ppc: spapr: Implement nested PAPR hcall - H_GUEST_DELETE,
Harsh Prateek Bora <=
- [PATCH 15/15] ppc: spapr: Document Nested PAPR API, Harsh Prateek Bora, 2023/07/18
- [PATCH 13/15] ppc: spapr: Implement nested PAPR hcall - H_GUEST_RUN_VCPU, Harsh Prateek Bora, 2023/07/18