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Re: [PATCH v2 02/14] spapr: nested: Introduce SpaprMachineStateNested to
From: |
Nicholas Piggin |
Subject: |
Re: [PATCH v2 02/14] spapr: nested: Introduce SpaprMachineStateNested to store related info. |
Date: |
Wed, 29 Nov 2023 13:48:30 +1000 |
On Thu Oct 12, 2023 at 8:49 PM AEST, Harsh Prateek Bora wrote:
> Currently, nested_ptcr is being used by existing nested-hv API to store
> nested guest related info. This need to be organised to extend support
> for the nested PAPR API which would need to store additional info related
> to nested guests in next series of patches.
>
> Signed-off-by: Michael Neuling <mikey@neuling.org>
> Signed-off-by: Harsh Prateek Bora <harshpb@linux.ibm.com>
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
> ---
> hw/ppc/spapr_nested.c | 8 ++++----
> include/hw/ppc/spapr.h | 3 ++-
> include/hw/ppc/spapr_nested.h | 5 +++++
> 3 files changed, 11 insertions(+), 5 deletions(-)
>
> diff --git a/hw/ppc/spapr_nested.c b/hw/ppc/spapr_nested.c
> index 123e127b08..db47c1196f 100644
> --- a/hw/ppc/spapr_nested.c
> +++ b/hw/ppc/spapr_nested.c
> @@ -15,8 +15,8 @@ bool spapr_get_pate_nested(SpaprMachineState *spapr,
> PowerPCCPU *cpu,
>
> assert(lpid != 0);
>
> - patb = spapr->nested_ptcr & PTCR_PATB;
> - pats = spapr->nested_ptcr & PTCR_PATS;
> + patb = spapr->nested.ptcr & PTCR_PATB;
> + pats = spapr->nested.ptcr & PTCR_PATS;
>
> /* Check if partition table is properly aligned */
> if (patb & MAKE_64BIT_MASK(0, pats + 12)) {
> @@ -54,7 +54,7 @@ static target_ulong h_set_ptbl(PowerPCCPU *cpu,
> return H_PARAMETER;
> }
>
> - spapr->nested_ptcr = ptcr; /* Save new partition table */
> + spapr->nested.ptcr = ptcr; /* Save new partition table */
>
> return H_SUCCESS;
> }
> @@ -186,7 +186,7 @@ static target_ulong h_enter_nested(PowerPCCPU *cpu,
> struct kvmppc_pt_regs *regs;
> hwaddr len;
>
> - if (spapr->nested_ptcr == 0) {
> + if (spapr->nested.ptcr == 0) {
> return H_NOT_AVAILABLE;
> }
>
> diff --git a/include/hw/ppc/spapr.h b/include/hw/ppc/spapr.h
> index e91791a1a9..3e825f2787 100644
> --- a/include/hw/ppc/spapr.h
> +++ b/include/hw/ppc/spapr.h
> @@ -12,6 +12,7 @@
> #include "hw/ppc/spapr_xive.h" /* For SpaprXive */
> #include "hw/ppc/xics.h" /* For ICSState */
> #include "hw/ppc/spapr_tpm_proxy.h"
> +#include "hw/ppc/spapr_nested.h" /* For SpaprMachineStateNested */
>
> struct SpaprVioBus;
> struct SpaprPhbState;
> @@ -213,7 +214,7 @@ struct SpaprMachineState {
> uint32_t vsmt; /* Virtual SMT mode (KVM's "core stride") */
>
> /* Nested HV support (TCG only) */
> - uint64_t nested_ptcr;
> + SpaprMachineStateNested nested;
>
> Notifier epow_notifier;
> QTAILQ_HEAD(, SpaprEventLogEntry) pending_events;
> diff --git a/include/hw/ppc/spapr_nested.h b/include/hw/ppc/spapr_nested.h
> index e3d15d6d0b..0722b999cd 100644
> --- a/include/hw/ppc/spapr_nested.h
> +++ b/include/hw/ppc/spapr_nested.h
> @@ -4,6 +4,10 @@
> #include "qemu/osdep.h"
> #include "target/ppc/cpu.h"
>
> +typedef struct SpaprMachineStateNested {
> + uint64_t ptcr;
> +} SpaprMachineStateNested;
> +
> /*
> * Register state for entering a nested guest with H_ENTER_NESTED.
> * New member must be added at the end.
> @@ -98,6 +102,7 @@ struct nested_ppc_state {
>
> void spapr_register_nested(void);
> void spapr_exit_nested(PowerPCCPU *cpu, int excp);
> +typedef struct SpaprMachineState SpaprMachineState;
> bool spapr_get_pate_nested(SpaprMachineState *spapr, PowerPCCPU *cpu,
> target_ulong lpid, ppc_v3_pate_t *entry);
> #endif /* HW_SPAPR_NESTED_H */
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