From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:54233) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WzeIP-0003xX-7m for qemu-devel@nongnu.org; Tue, 24 Jun 2014 23:55:02 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1WzeIB-0000hP-TD for qemu-devel@nongnu.org; Tue, 24 Jun 2014 23:54:53 -0400 Received: from e23smtp03.au.ibm.com ([202.81.31.145]:40022) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WzeIB-0000gR-42 for qemu-devel@nongnu.org; Tue, 24 Jun 2014 23:54:39 -0400 Received: from /spool/local by e23smtp03.au.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Wed, 25 Jun 2014 13:54:35 +1000 From: Sam Bobroff Date: Wed, 25 Jun 2014 13:54:32 +1000 Message-Id: <08b0a6e6397791a9e4fd3020b018ff77e1a99fbd.1403668461.git.sam.bobroff@au1.ibm.com> In-Reply-To: References: In-Reply-To: References: Subject: [Qemu-devel] [PATCH v2 4/4] spapr: Add RTAS sysparm SPLPAR Characteristics List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: qemu-ppc@nongnu.org Add support for the SPLPAR Characteristics parameter to the emulated RTAS call ibm,get-system-parameter. The support provides just enough information to allow "cat /proc/powerpc/lparcfg" to succeed without generating a kernel error message. Without this patch the above command will produce the following kernel message: arch/powerpc/platforms/pseries/lparcfg.c \ parse_system_parameter_string Error calling get-system-parameter \ (0xfffffffd) Signed-off-by: Sam Bobroff --- hw/ppc/spapr_rtas.c | 8 ++++++++ include/hw/ppc/spapr.h | 1 + 2 files changed, 9 insertions(+) diff --git a/hw/ppc/spapr_rtas.c b/hw/ppc/spapr_rtas.c index 9804873..a58abe6 100644 --- a/hw/ppc/spapr_rtas.c +++ b/hw/ppc/spapr_rtas.c @@ -236,6 +236,13 @@ static void rtas_ibm_get_system_parameter(PowerPCCPU *cpu, target_ulong ret = RTAS_OUT_SUCCESS; switch (parameter) { + case RTAS_SYSPARM_SPLPAR_CHARACTERISTICS: { + char *param_val = g_strdup_printf("MaxEntCap=%d,MaxPlatProcs=%d", + max_cpus, smp_cpus); + rtas_st_buffer(buffer, length, (uint8_t *)param_val, strlen(param_val)); + g_free(param_val); + break; + } case RTAS_SYSPARM_DIAGNOSTICS_RUN_MODE: { uint8_t param_val = DIAGNOSTICS_RUN_MODE_DISABLED; @@ -262,6 +269,7 @@ static void rtas_ibm_set_system_parameter(PowerPCCPU *cpu, target_ulong ret = RTAS_OUT_NOT_SUPPORTED; switch (parameter) { + case RTAS_SYSPARM_SPLPAR_CHARACTERISTICS: case RTAS_SYSPARM_DIAGNOSTICS_RUN_MODE: case RTAS_SYSPARM_UUID: ret = RTAS_OUT_NOT_AUTHORIZED; diff --git a/include/hw/ppc/spapr.h b/include/hw/ppc/spapr.h index fe02fb4..c67dc22 100644 --- a/include/hw/ppc/spapr.h +++ b/include/hw/ppc/spapr.h @@ -359,6 +359,7 @@ static inline int spapr_allocate_lsi(int hint) #define RTAS_OUT_NOT_AUTHORIZED -9002 /* RTAS ibm,get-system-parameter token values */ +#define RTAS_SYSPARM_SPLPAR_CHARACTERISTICS 20 #define RTAS_SYSPARM_DIAGNOSTICS_RUN_MODE 42 #define RTAS_SYSPARM_UUID 48 -- 1.9.0