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[Qemu-devel] [PATCH 21/32] spapr: add rtas_st_buffer_direct() helper
From: |
David Gibson |
Subject: |
[Qemu-devel] [PATCH 21/32] spapr: add rtas_st_buffer_direct() helper |
Date: |
Fri, 1 May 2015 16:41:39 +1000 |
From: Michael Roth <address@hidden>
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>
Signed-off-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 8810911..65ef7dd 100644
--- a/include/hw/ppc/spapr.h
+++ b/include/hw/ppc/spapr.h
@@ -464,6 +464,13 @@ 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)
@@ -473,8 +480,7 @@ 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,
--
2.1.0
- [Qemu-devel] [PATCH 14/32] hw/ppc/spapr: Fix error message when firmware could not be loaded, (continued)
- [Qemu-devel] [PATCH 14/32] hw/ppc/spapr: Fix error message when firmware could not be loaded, David Gibson, 2015/05/01
- [Qemu-devel] [PATCH 09/32] spapr_iommu: Make spapr_tce_find_by_liobn() public, David Gibson, 2015/05/01
- [Qemu-devel] [PATCH 18/32] spapr_rtas: add get/set-power-level RTAS interfaces, David Gibson, 2015/05/01
- [Qemu-devel] [PATCH 20/32] spapr_rtas: add get-sensor-state RTAS interface, David Gibson, 2015/05/01
- [Qemu-devel] [PATCH 19/32] spapr_rtas: add set-indicator RTAS interface, David Gibson, 2015/05/01
- [Qemu-devel] [PATCH 04/32] spapr_pci: Introduce a liobn number generating macros, David Gibson, 2015/05/01
- [Qemu-devel] [PATCH 03/32] spapr_iommu: Make H_PUT_TCE_INDIRECT endian-safe, David Gibson, 2015/05/01
- [Qemu-devel] [PATCH 24/32] spapr_events: event-scan RTAS interface, David Gibson, 2015/05/01
- [Qemu-devel] [PATCH 05/32] spapr_vio: Introduce a liobn number generating macros, David Gibson, 2015/05/01
- [Qemu-devel] [PATCH 13/32] pseries: Add pseries-2.4 machine type, David Gibson, 2015/05/01
- [Qemu-devel] [PATCH 21/32] spapr: add rtas_st_buffer_direct() helper,
David Gibson <=
- [Qemu-devel] [PATCH 02/32] spapr_iommu: Disable in-kernel IOMMU tables for >4GB windows, David Gibson, 2015/05/01
- [Qemu-devel] [PATCH 25/32] spapr_drc: add spapr_drc_populate_dt(), David Gibson, 2015/05/01
- [Qemu-devel] [PATCH 07/32] spapr_iommu: Add separate trace points for PCI DMA operations, David Gibson, 2015/05/01
- [Qemu-devel] [PATCH 28/32] pci: make pci_bar useable outside pci.c, David Gibson, 2015/05/01
- [Qemu-devel] [PATCH 10/32] spapr_pci: Rework device-tree rendering, David Gibson, 2015/05/01
- [Qemu-devel] [PATCH 30/32] spapr_pci: emit hotplug add/remove events during hotplug, David Gibson, 2015/05/01
- [Qemu-devel] [PATCH 22/32] spapr_rtas: add ibm, configure-connector RTAS interface, David Gibson, 2015/05/01
- [Qemu-devel] [PATCH 15/32] hw/ppc/spapr: Use error_report() instead of hw_error(), David Gibson, 2015/05/01
- [Qemu-devel] [PATCH 06/32] spapr_pci: Define default DMA window size as a macro, David Gibson, 2015/05/01
- [Qemu-devel] [PATCH 01/32] spapr_pci: Fix unsafe signed/unsigned comparisons, David Gibson, 2015/05/01