On 12/05/2013 12:19 PM, Michael Roth wrote:
> From: Mike Day <ncm...@ncultra.org>
>
> Signed-off-by: Mike Day <ncm...@ncultra.org>
> Signed-off-by: Michael Roth <mdr...@linux.vnet.ibm.com>
> ---
> hw/ppc/spapr_pci.c | 83
> ++++++++++++++++++++++++++++++++++++++++++++++++
> include/hw/ppc/spapr.h | 30 +++++++++++++++++
> 2 files changed, 113 insertions(+)
>
> diff --git a/hw/ppc/spapr_pci.c b/hw/ppc/spapr_pci.c
> index 7763149..3117390 100644
> --- a/hw/ppc/spapr_pci.c
> +++ b/hw/ppc/spapr_pci.c
> @@ -404,6 +404,80 @@ static void
> rtas_ibm_query_interrupt_source_number(PowerPCCPU *cpu,
> rtas_st(rets, 2, 1);/* 0 == level; 1 == edge */
> }
>
> +static void rtas_set_indicator(PowerPCCPU *cpu, sPAPREnvironment *spapr,
> + uint32_t token, uint32_t nargs,
> + target_ulong args, uint32_t nret,
> + target_ulong rets)
> +{
> + uint32_t indicator = rtas_ld(args, 0);
> + uint32_t drc_index = rtas_ld(args, 1);
> + uint32_t indicator_state = rtas_ld(args, 2);
> + uint32_t encoded = 0, shift = 0, mask = 0;
> + uint32_t *pind;
> + DrcEntry *drc_entry = NULL;
> +
> + if (drc_index == 0) { /* platform indicator */
> + pind = &spapr->state;
> + } else {
> + drc_entry = spapr_find_drc_entry(drc_index);
> + if (!drc_entry) {
> + g_warning("rtas_set_indicator: unable to find drc_entry for %x",
> + drc_index);
> + rtas_st(rets, 0, NO_SUCH_INDICATOR);
> + return;
> + }
> + pind = &drc_entry->state;
> + }
> +
> + switch (indicator) {
> + case 9: /* EPOW */
> + shift = INDICATOR_EPOW_SHIFT;
> + mask = INDICATOR_EPOW_MASK;
> + break;
> + case 9001: /* Isolation state */
> + /* encode the new value into the correct bit field */
> + shift = INDICATOR_ISOLATION_SHIFT;
> + mask = INDICATOR_ISOLATION_MASK;
> + break;
> + case 9002: /* DR */
> + shift = INDICATOR_DR_SHIFT;
> + mask = INDICATOR_DR_MASK;
> + break;
> + case 9003: /* Allocation State */
> + shift = INDICATOR_ALLOCATION_SHIFT;
> + mask = INDICATOR_ALLOCATION_MASK;
> + break;
> + case 9005: /* global interrupt */
> + shift = INDICATOR_GLOBAL_INTERRUPT_SHIFT;
> + mask = INDICATOR_GLOBAL_INTERRUPT_MASK;
> + break;
> + case 9006: /* error log */
> + shift = INDICATOR_ERROR_LOG_SHIFT;
> + mask = INDICATOR_ERROR_LOG_MASK;
> + break;
> + case 9007: /* identify */
> + shift = INDICATOR_IDENTIFY_SHIFT;
> + mask = INDICATOR_IDENTIFY_MASK;
> + break;
> + case 9009: /* reset */
> + shift = INDICATOR_RESET_SHIFT;
> + mask = INDICATOR_RESET_MASK;
> + break;
> + default:
> + g_warning("rtas_set_indicator: indicator not implemented: %d",
> + indicator);
> + rtas_st(rets, 0, NO_SUCH_INDICATOR);
> + return;
> + }
> +
> + encoded = ENCODE_DRC_STATE(indicator_state, mask, shift);
> + /* clear the current indicator value */
> + *pind &= ~mask;
> + /* set the new value */
> + *pind |= encoded;
> + rtas_st(rets, 0, 0);
> +}
> +
> static int pci_spapr_swizzle(int slot, int pin)
> {
> return (slot + pin) % PCI_NUM_PINS;
> @@ -637,6 +711,14 @@ static int spapr_phb_init(SysBusDevice *s)
> sphb->lsi_table[i].irq = irq;
> }
>
> + /* make sure the platform EPOW sensor is initialized - the
> + * guest will probe it when there is a hotplug event.
> + */
> + spapr->state &= ~(uint32_t)INDICATOR_EPOW_MASK;
> + spapr->state |= ENCODE_DRC_STATE(0,
> + INDICATOR_EPOW_MASK,
> + INDICATOR_EPOW_SHIFT);
> +
> return 0;
> }
>
> @@ -856,6 +938,7 @@ void spapr_pci_rtas_init(void)
> rtas_ibm_query_interrupt_source_number);
> spapr_rtas_register("ibm,change-msi", rtas_ibm_change_msi);
> }
> + spapr_rtas_register("set-indicator", rtas_set_indicator);
> }
>
> static void spapr_pci_register_types(void)
> diff --git a/include/hw/ppc/spapr.h b/include/hw/ppc/spapr.h
> index b2f11e9..d8c7de4 100644
> --- a/include/hw/ppc/spapr.h
> +++ b/include/hw/ppc/spapr.h
> @@ -38,6 +38,9 @@ typedef struct sPAPREnvironment {
> int htab_save_index;
> bool htab_first_pass;
> int htab_fd;
> +
> + /* platform state - sensors and indicators */
> + uint32_t state;
> } sPAPREnvironment;
>
> #define H_SUCCESS 0
> @@ -299,6 +302,33 @@ typedef struct sPAPREnvironment {
> #define KVMPPC_H_LOGICAL_MEMOP (KVMPPC_HCALL_BASE + 0x1)
> #define KVMPPC_HCALL_MAX KVMPPC_H_LOGICAL_MEMOP
>
> +/* For set-indicator RTAS interface */
> +#define INDICATOR_ISOLATION_MASK 0x0001 /* 9001 one bit */
> +#define INDICATOR_GLOBAL_INTERRUPT_MASK 0x0002 /* 9005 one bit */
> +#define INDICATOR_ERROR_LOG_MASK 0x0004 /* 9006 one bit */
> +#define INDICATOR_IDENTIFY_MASK 0x0008 /* 9007 one bit */
> +#define INDICATOR_RESET_MASK 0x0010 /* 9009 one bit */
> +#define INDICATOR_DR_MASK 0x00e0 /* 9002 three bits */
> +#define INDICATOR_ALLOCATION_MASK 0x0300 /* 9003 two bits */
> +#define INDICATOR_EPOW_MASK 0x1c00 /* 9 three bits */
> +
> +#define INDICATOR_ISOLATION_SHIFT 0x00 /* bit 0 */
> +#define INDICATOR_GLOBAL_INTERRUPT_SHIFT 0x01 /* bit 1 */
> +#define INDICATOR_ERROR_LOG_SHIFT 0x02 /* bit 2 */
> +#define INDICATOR_IDENTIFY_SHIFT 0x03 /* bit 3 */
> +#define INDICATOR_RESET_SHIFT 0x04 /* bit 4 */
> +#define INDICATOR_DR_SHIFT 0x05 /* bits 5-7 */
> +#define INDICATOR_ALLOCATION_SHIFT 0x08 /* bits 8-9 */
> +#define INDICATOR_EPOW_SHIFT 0x0a /* bits 10-12 */
> +
> +#define NO_SUCH_INDICATOR -3
The ppc-next tree has these for RTAS returns, recently added:
#define RTAS_OUT_SUCCESS 0
#define RTAS_OUT_NO_ERRORS_FOUND 1
#define RTAS_OUT_HW_ERROR -1
#define RTAS_OUT_BUSY -2
#define RTAS_OUT_PARAM_ERROR -3
--
Alexey
