From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:33295) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VicwM-0008B1-Eq for qemu-devel@nongnu.org; Mon, 18 Nov 2013 23:29:39 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Vicw5-0000hd-Ly for qemu-devel@nongnu.org; Mon, 18 Nov 2013 23:29:30 -0500 Received: from e23smtp06.au.ibm.com ([202.81.31.148]:33714) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Vicw4-0000hG-TP for qemu-devel@nongnu.org; Mon, 18 Nov 2013 23:29:13 -0500 Received: from /spool/local by e23smtp06.au.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Tue, 19 Nov 2013 14:29:06 +1000 From: Alexey Kardashevskiy Date: Tue, 19 Nov 2013 15:28:55 +1100 Message-Id: <1384835335-15116-3-git-send-email-aik@ozlabs.ru> In-Reply-To: <1384835335-15116-1-git-send-email-aik@ozlabs.ru> References: <1384835335-15116-1-git-send-email-aik@ozlabs.ru> Subject: [Qemu-devel] [PATCH v3 2/2] spapr-rtas: add ibm, (get|set)-system-parameter List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: Alexey Kardashevskiy , qemu-ppc@nongnu.org, Alexander Graf This adds very basic handlers for ibm,get-system-parameter and ibm,set-system-parameter RTAS calls. The only parameter handled at the moment is "platform-processor-diagnostics-run-mode" which is always disabled and does not support changing. This is expected to make "ppc64_cpu --run-mode=1" happy. Signed-off-by: Alexey Kardashevskiy --- Changes: v3: * reworked all return codes (in a separate patch) v2: * addressed comments from Alex Graf --- hw/ppc/spapr_rtas.c | 47 +++++++++++++++++++++++++++++++++++++++++++++++ include/hw/ppc/spapr.h | 2 ++ 2 files changed, 49 insertions(+) diff --git a/hw/ppc/spapr_rtas.c b/hw/ppc/spapr_rtas.c index f9897a5..d7b1f1d 100644 --- a/hw/ppc/spapr_rtas.c +++ b/hw/ppc/spapr_rtas.c @@ -224,6 +224,49 @@ static void rtas_stop_self(PowerPCCPU *cpu, sPAPREnvironment *spapr, env->msr = 0; } +#define DIAGNOSTICS_RUN_MODE 42 + +static void rtas_ibm_get_system_parameter(PowerPCCPU *cpu, + sPAPREnvironment *spapr, + uint32_t token, uint32_t nargs, + target_ulong args, + uint32_t nret, target_ulong rets) +{ + target_ulong papameter = rtas_ld(args, 0); + target_ulong buffer = rtas_ld(args, 1); + target_ulong length = rtas_ld(args, 2); + target_ulong ret = RTAS_OUT_NOT_SUPPORTED; + + switch (papameter) { + case DIAGNOSTICS_RUN_MODE: + if (length == 1) { + rtas_st(buffer, 0, 0); + ret = RTAS_OUT_SUCCESS; + } + break; + } + + rtas_st(rets, 0, ret); +} + +static void rtas_ibm_set_system_parameter(PowerPCCPU *cpu, + sPAPREnvironment *spapr, + uint32_t token, uint32_t nargs, + target_ulong args, + uint32_t nret, target_ulong rets) +{ + target_ulong papameter = rtas_ld(args, 0); + target_ulong ret = RTAS_OUT_NOT_SUPPORTED; + + switch (papameter) { + case DIAGNOSTICS_RUN_MODE: + ret = RTAS_OUT_NOT_AUTHORIZED; + break; + } + + rtas_st(rets, 0, ret); +} + static struct rtas_call { const char *name; spapr_rtas_fn fn; @@ -345,6 +388,10 @@ static void core_rtas_register_types(void) rtas_query_cpu_stopped_state); spapr_rtas_register("start-cpu", rtas_start_cpu); spapr_rtas_register("stop-self", rtas_stop_self); + spapr_rtas_register("ibm,get-system-parameter", + rtas_ibm_get_system_parameter); + spapr_rtas_register("ibm,set-system-parameter", + rtas_ibm_set_system_parameter); } type_init(core_rtas_register_types) diff --git a/include/hw/ppc/spapr.h b/include/hw/ppc/spapr.h index 085cfa7..b2f11e9 100644 --- a/include/hw/ppc/spapr.h +++ b/include/hw/ppc/spapr.h @@ -338,6 +338,8 @@ static inline int spapr_allocate_lsi(int hint) #define RTAS_OUT_HW_ERROR -1 #define RTAS_OUT_BUSY -2 #define RTAS_OUT_PARAM_ERROR -3 +#define RTAS_OUT_NOT_SUPPORTED -3 +#define RTAS_OUT_NOT_AUTHORIZED -9002 static inline uint64_t ppc64_phys_to_real(uint64_t addr) { -- 1.8.4.rc4