From eef6d10d3ee7266032286ee1e462b2942aed5c2f Mon Sep 17 00:00:00 2001 From: Alex Williamson Date: Thu, 1 Nov 2007 09:00:27 -0600 Subject: [PATCH] [IA64] Implement some PAL procedures This patch implements: - PAL_PREFETCH_VISIBILITY - PAL_MC_DRAIN - PAL_BRAND_INFO - PAL_GET_PSTATE - PAL_CACHE_SHARED_INFO These PAL procedures are necessary for Windows 2008. Signed-off-by: Kouya Shimura --- xen/arch/ia64/xen/fw_emul.c | 41 +++++++++++++++++++++++++++++++++++++ 1 file changed, 41 insertions(+) diff --git a/xen/arch/ia64/xen/fw_emul.c b/xen/arch/ia64/xen/fw_emul.c index b6e9f8754b..5ef3ab9f4f 100644 --- a/xen/arch/ia64/xen/fw_emul.c +++ b/xen/arch/ia64/xen/fw_emul.c @@ -589,6 +589,19 @@ remote_pal_cache_flush(void *v) args->status = status; } +static void +remote_pal_prefetch_visibility(void *v) +{ + s64 trans_type = (s64)v; + ia64_pal_prefetch_visibility(trans_type); +} + +static void +remote_pal_mc_drain(void *v) +{ + ia64_pal_mc_drain(); +} + struct ia64_pal_retval xen_pal_emulator(unsigned long index, u64 in1, u64 in2, u64 in3) { @@ -850,7 +863,35 @@ xen_pal_emulator(unsigned long index, u64 in1, u64 in2, u64 in3) status = PAL_STATUS_SUCCESS; r9 = current->vcpu_id; break; + case PAL_PREFETCH_VISIBILITY: + status = ia64_pal_prefetch_visibility(in1); + if (status == 0) { + /* must be performed on all remote processors + in the coherence domain. */ + smp_call_function(remote_pal_prefetch_visibility, + (void *)in1, 1, 1); + status = 1; /* no more necessary on remote processor */ + } + break; + case PAL_MC_DRAIN: + status = ia64_pal_mc_drain(); + /* FIXME: All vcpus likely call PAL_MC_DRAIN. + That causes the congestion. */ + smp_call_function(remote_pal_mc_drain, NULL, 1, 1); + break; + case PAL_BRAND_INFO: + if (in1 == 0) { + char brand_info[128]; + status = ia64_pal_get_brand_info(brand_info); + if (status == PAL_STATUS_SUCCESS) + copy_to_user((void *)in2, brand_info, 128); + } else { + status = PAL_STATUS_EINVAL; + } + break; case PAL_LOGICAL_TO_PHYSICAL: + case PAL_GET_PSTATE: + case PAL_CACHE_SHARED_INFO: /* Optional, no need to complain about being unimplemented */ break; default: -- 2.30.2