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[Qemu-devel] [PATCH v6 06/15] spapr: add rtas_st_buffer_direct() helper
From: |
Michael Roth |
Subject: |
[Qemu-devel] [PATCH v6 06/15] spapr: add rtas_st_buffer_direct() helper |
Date: |
Thu, 26 Feb 2015 21:11:06 -0600 |
This is similar to the existing rtas_st_buffer(), but for cases
where the guest is not expecting a length-encoded byte array.
Namely, for calls where a "work area" buffer is used to pass
around arbitrary fields/data.
Signed-off-by: Michael Roth <address@hidden>
Reviewed-by: David Gibson <address@hidden>
---
include/hw/ppc/spapr.h | 10 ++++++++--
1 file changed, 8 insertions(+), 2 deletions(-)
diff --git a/include/hw/ppc/spapr.h b/include/hw/ppc/spapr.h
index a56191f..ea43a84 100644
--- a/include/hw/ppc/spapr.h
+++ b/include/hw/ppc/spapr.h
@@ -425,6 +425,13 @@ static inline void rtas_st(target_ulong phys, int n,
uint32_t val)
stl_be_phys(&address_space_memory, ppc64_phys_to_real(phys + 4*n), val);
}
+static inline void rtas_st_buffer_direct(target_ulong phys,
+ target_ulong phys_len,
+ uint8_t *buffer, uint16_t buffer_len)
+{
+ cpu_physical_memory_write(ppc64_phys_to_real(phys), buffer,
+ MIN(buffer_len, phys_len));
+}
static inline void rtas_st_buffer(target_ulong phys, target_ulong phys_len,
uint8_t *buffer, uint16_t buffer_len)
@@ -434,8 +441,7 @@ static inline void rtas_st_buffer(target_ulong phys,
target_ulong phys_len,
}
stw_be_phys(&address_space_memory,
ppc64_phys_to_real(phys), buffer_len);
- cpu_physical_memory_write(ppc64_phys_to_real(phys + 2),
- buffer, MIN(buffer_len, phys_len - 2));
+ rtas_st_buffer_direct(phys + 2, phys_len - 2, buffer, buffer_len);
}
typedef void (*spapr_rtas_fn)(PowerPCCPU *cpu, sPAPREnvironment *spapr,
--
1.9.1
- [Qemu-devel] [PATCH v6 01/15] docs: add sPAPR hotplug/dynamic-reconfiguration documentation, (continued)
- [Qemu-devel] [PATCH v6 01/15] docs: add sPAPR hotplug/dynamic-reconfiguration documentation, Michael Roth, 2015/02/26
- [Qemu-devel] [PATCH v6 02/15] spapr_drc: initial implementation of sPAPRDRConnector device, Michael Roth, 2015/02/26
- [Qemu-devel] [PATCH v6 14/15] spapr_pci: enable basic hotplug operations, Michael Roth, 2015/02/26
- [Qemu-devel] [PATCH v6 04/15] spapr_rtas: add set-indicator RTAS interface, Michael Roth, 2015/02/26
- [Qemu-devel] [PATCH v6 15/15] spapr_pci: emit hotplug add/remove events during hotplug, Michael Roth, 2015/02/26
- [Qemu-devel] [PATCH v6 03/15] spapr_rtas: add get/set-power-level RTAS interfaces, Michael Roth, 2015/02/26
- [Qemu-devel] [PATCH v6 05/15] spapr_rtas: add get-sensor-state RTAS interface, Michael Roth, 2015/02/26
- [Qemu-devel] [PATCH v6 06/15] spapr: add rtas_st_buffer_direct() helper,
Michael Roth <=
- [Qemu-devel] [PATCH v6 07/15] spapr_rtas: add ibm, configure-connector RTAS interface, Michael Roth, 2015/02/26
- [Qemu-devel] [PATCH v6 08/15] spapr_events: re-use EPOW event infrastructure for hotplug events, Michael Roth, 2015/02/26