From: Alexey Kardashevskiy <a...@ozlabs.ru>
This addresses the comments from v22.
The functional changes are (the VOF ones need retesting with Pegasos2):
(VOF) setprop will start failing if the machine class callback
did not handle it;
(VOF) unit addresses are lowered in path_offset();
(SPAPR) /chosen/bootargs is initialized from kernel_cmdline if
the client did not change it.
Fixes: 5c991e5d4378 ("spapr: Implement Open Firmware client interface")
Cc: BALATON Zoltan <bala...@eik.bme.hu>
Signed-off-by: Alexey Kardashevskiy <a...@ozlabs.ru>
Message-Id: <20210708065625.548396-1-...@ozlabs.ru>
Tested-by: BALATON Zoltan <bala...@eik.bme.hu>
Signed-off-by: David Gibson <da...@gibson.dropbear.id.au>
---
MAINTAINERS | 4 ++--
hw/ppc/spapr.c | 10 +---------
hw/ppc/spapr_hcall.c | 5 ++---
hw/ppc/spapr_vof.c | 32 +++++++++++++++++++++++---------
hw/ppc/vof.c | 30 +++++++++++++++++-------------
include/hw/ppc/spapr.h | 3 +--
pc-bios/vof.bin | Bin 3784 -> 3456 bytes
pc-bios/vof/ci.c | 2 +-
pc-bios/vof/libc.c | 26 --------------------------
pc-bios/vof/main.c | 2 +-
pc-bios/vof/vof.h | 2 --
11 files changed, 48 insertions(+), 68 deletions(-)
diff --git a/MAINTAINERS b/MAINTAINERS
index ce122eeced..89d71b42b2 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1362,8 +1362,8 @@ F: include/hw/pci-host/mv64361.h
Virtual Open Firmware (VOF)
M: Alexey Kardashevskiy <a...@ozlabs.ru>
-M: David Gibson <da...@gibson.dropbear.id.au>
-M: Greg Kurz <gr...@kaod.org>
+R: David Gibson <da...@gibson.dropbear.id.au>
+R: Greg Kurz <gr...@kaod.org>
L: qemu-...@nongnu.org
S: Maintained
F: hw/ppc/spapr_vof*
diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
index e9b6d0f587..3808d47053 100644
--- a/hw/ppc/spapr.c
+++ b/hw/ppc/spapr.c
@@ -1645,15 +1645,7 @@ static void spapr_machine_reset(MachineState *machine)
fdt = spapr_build_fdt(spapr, true, FDT_MAX_SIZE);
if (spapr->vof) {
- target_ulong stack_ptr = 0;
-
- spapr_vof_reset(spapr, fdt, &stack_ptr, &error_fatal);
-
- spapr_cpu_set_entry_state(first_ppc_cpu, SPAPR_ENTRY_POINT,
- stack_ptr, spapr->initrd_base,
- spapr->initrd_size);
- /* VOF is 32bit BE so enforce MSR here */
- first_ppc_cpu->env.msr &= ~((1ULL << MSR_SF) | (1ULL << MSR_LE));
+ spapr_vof_reset(spapr, fdt, &error_fatal);
/*
* Do not pack the FDT as the client may change properties.
* VOF client does not expect the FDT so we do not load it to the VM.
diff --git a/hw/ppc/spapr_hcall.c b/hw/ppc/spapr_hcall.c
index 80ae8eaadd..0e9a5b2e40 100644
--- a/hw/ppc/spapr_hcall.c
+++ b/hw/ppc/spapr_hcall.c
@@ -1080,7 +1080,7 @@ target_ulong do_client_architecture_support(PowerPCCPU
*cpu,
SpaprOptionVector *ov1_guest, *ov5_guest;
bool guest_radix;
bool raw_mode_supported = false;
- bool guest_xive, reset_fdt = false;
+ bool guest_xive;
CPUState *cs;
void *fdt;
uint32_t max_compat = spapr->max_compat_pvr;
@@ -1233,8 +1233,7 @@ target_ulong do_client_architecture_support(PowerPCCPU
*cpu,
spapr_setup_hpt(spapr);
}
- reset_fdt = spapr->vof != NULL;
- fdt = spapr_build_fdt(spapr, reset_fdt, fdt_bufsize);
+ fdt = spapr_build_fdt(spapr, spapr->vof != NULL, fdt_bufsize);
g_free(spapr->fdt_blob);
spapr->fdt_size = fdt_totalsize(fdt);
spapr->fdt_initial_size = spapr->fdt_size;
diff --git a/hw/ppc/spapr_vof.c b/hw/ppc/spapr_vof.c
index 131a03fec0..40ce8fe003 100644
--- a/hw/ppc/spapr_vof.c
+++ b/hw/ppc/spapr_vof.c
@@ -8,6 +8,7 @@
#include "qapi/error.h"
#include "hw/ppc/spapr.h"
#include "hw/ppc/spapr_vio.h"
+#include "hw/ppc/spapr_cpu_core.h"
#include "hw/ppc/fdt.h"
#include "hw/ppc/vof.h"
#include "sysemu/sysemu.h"
@@ -29,13 +30,19 @@ target_ulong spapr_h_vof_client(PowerPCCPU *cpu,
SpaprMachineState *spapr,
void spapr_vof_client_dt_finalize(SpaprMachineState *spapr, void *fdt)
{
char *stdout_path = spapr_vio_stdout_path(spapr->vio_bus);
- int chosen;
vof_build_dt(fdt, spapr->vof);
- _FDT(chosen = fdt_path_offset(fdt, "/chosen"));
- _FDT(fdt_setprop_string(fdt, chosen, "bootargs",
- spapr->vof->bootargs ? : ""));
+ if (spapr->vof->bootargs) {
+ int chosen;
+
+ _FDT(chosen = fdt_path_offset(fdt, "/chosen"));
+ /*
+ * If the client did not change "bootargs", spapr_dt_chosen() must have
+ * stored machine->kernel_cmdline in it before getting here.
+ */
+ _FDT(fdt_setprop_string(fdt, chosen, "bootargs",
spapr->vof->bootargs));
+ }
/*
* SLOF-less setup requires an open instance of stdout for early
@@ -48,20 +55,21 @@ void spapr_vof_client_dt_finalize(SpaprMachineState *spapr,
void *fdt)
}
}
-void spapr_vof_reset(SpaprMachineState *spapr, void *fdt,
- target_ulong *stack_ptr, Error **errp)
+void spapr_vof_reset(SpaprMachineState *spapr, void *fdt, Error **errp)
{
+ target_ulong stack_ptr;
Vof *vof = spapr->vof;
+ PowerPCCPU *first_ppc_cpu = POWERPC_CPU(first_cpu);
vof_init(vof, spapr->rma_size, errp);
- *stack_ptr = vof_claim(vof, 0, VOF_STACK_SIZE, VOF_STACK_SIZE);
- if (*stack_ptr == -1) {
+ stack_ptr = vof_claim(vof, 0, VOF_STACK_SIZE, VOF_STACK_SIZE);
+ if (stack_ptr == -1) {
error_setg(errp, "Memory allocation for stack failed");
return;
}
/* Stack grows downwards plus reserve space for the minimum stack frame */
- *stack_ptr += VOF_STACK_SIZE - 0x20;
+ stack_ptr += VOF_STACK_SIZE - 0x20;
if (spapr->kernel_size &&
vof_claim(vof, spapr->kernel_addr, spapr->kernel_size, 0) == -1) {
@@ -77,6 +85,12 @@ void spapr_vof_reset(SpaprMachineState *spapr, void *fdt,
spapr_vof_client_dt_finalize(spapr, fdt);
+ spapr_cpu_set_entry_state(first_ppc_cpu, SPAPR_ENTRY_POINT,
+ stack_ptr, spapr->initrd_base,
+ spapr->initrd_size);
+ /* VOF is 32bit BE so enforce MSR here */
+ first_ppc_cpu->env.msr &= ~((1ULL << MSR_SF) | (1ULL << MSR_LE));
+
/*
* At this point the expected allocation map is:
*
diff --git a/hw/ppc/vof.c b/hw/ppc/vof.c
index 47c86e394e..81f6596215 100644
--- a/hw/ppc/vof.c
+++ b/hw/ppc/vof.c
@@ -144,15 +144,16 @@ static int path_offset(const void *fdt, const char *path)
* the lower case forms of the hexadecimal digits in the range a..f,
* suppressing leading zeros".
*/
- at = strchr(path, '@');
- if (!at) {
- return fdt_path_offset(fdt, path);
- }
-
p = g_strdup(path);
- for (at = at - path + p + 1; *at; ++at) {
- *at = tolower(*at);
+ for (at = strchr(p, '@'); at && *at; ) {
+ if (*at == '/') {
+ at = strchr(at, '@');
+ } else {
+ *at = tolower(*at);
+ ++at;
+ }
}
+
return fdt_path_offset(fdt, p);
}
@@ -300,6 +301,7 @@ static uint32_t vof_setprop(MachineState *ms, void *fdt,
Vof *vof,
char trval[64] = "";
char nodepath[VOF_MAX_PATH] = "";
Object *vmo = object_dynamic_cast(OBJECT(ms), TYPE_VOF_MACHINE_IF);
+ VofMachineIfClass *vmc;
g_autofree char *val = NULL;
if (vallen > VOF_MAX_SETPROPLEN) {
@@ -322,13 +324,13 @@ static uint32_t vof_setprop(MachineState *ms, void *fdt,
Vof *vof,
goto trace_exit;
}
- if (vmo) {
- VofMachineIfClass *vmc = VOF_MACHINE_GET_CLASS(vmo);
+ if (!vmo) {
+ goto trace_exit;
+ }
- if (vmc->setprop &&
- !vmc->setprop(ms, nodepath, propname, val, vallen)) {
- goto trace_exit;
- }
+ vmc = VOF_MACHINE_GET_CLASS(vmo);
+ if (!vmc->setprop || !vmc->setprop(ms, nodepath, propname, val, vallen)) {
+ goto trace_exit;
}
ret = fdt_setprop(fdt, offset, propname, val, vallen);
@@ -919,6 +921,8 @@ static uint32_t vof_client_handle(MachineState *ms, void
*fdt, Vof *vof,
ret = -1;
}
+#undef cmpserv
+
return ret;
}
diff --git a/include/hw/ppc/spapr.h b/include/hw/ppc/spapr.h
index a25e69fe4c..779f707fb8 100644
--- a/include/hw/ppc/spapr.h
+++ b/include/hw/ppc/spapr.h
@@ -964,8 +964,7 @@ void spapr_set_all_lpcrs(target_ulong value, target_ulong
mask);
hwaddr spapr_get_rtas_addr(void);
bool spapr_memory_hot_unplug_supported(SpaprMachineState *spapr);
-void spapr_vof_reset(SpaprMachineState *spapr, void *fdt,
- target_ulong *stack_ptr, Error **errp);
+void spapr_vof_reset(SpaprMachineState *spapr, void *fdt, Error **errp);
void spapr_vof_quiesce(MachineState *ms);
bool spapr_vof_setprop(MachineState *ms, const char *path, const char
*propname,
void *val, int vallen);
diff --git a/pc-bios/vof.bin b/pc-bios/vof.bin
index
1ec670be82134adcb5ae128732aff6e371281360..300cb7c7f9d9d77ffa7cbb7f0f26919246ef2d14
100755
GIT binary patch
delta 151
zcmX>h+aSGxjghy9!GnR}jEw^WLxNM!WMRf~rtUM7dl>VWx??8)VQgaRda${HDTtA&
zvuE-Z<}9X8h0P8uhZvdKV<xk(#WA)0nViCw#?&@t@)@=|rZ$VsKI~hWCdYEJZ`R>H
uz%*HauS<{T1Oo%l10a6Gz`)A@#2gF^j0r&O17wQ;u?!Gv0I>lOTL1tL)F-q6
delta 369
zcmZpWJ|Vk-jghyH!GnR}jEw^WLxNM^WMRf~re2ZBJ&buwJxeD4VQgaR(b(L;6vW8X
zb!GAu<}9YJjLi-#hZvbUmP}@0i(~3=nViCw#?*di@)@=|ruK%-KI~hW>f;$?8toY*
zYPdWc92yuV0NDzSK(SgaFA*RO7I$o9r~rvuYX1KZ5(CLiv}fQz5(BFTit$(~FfagV
z0iZ(-fNFUxwf_GHi38PgSaJf{@(diEUJMK~JsB8)VgeSHnhcB}4M4>LAOnF8VQ_5t
ze*$Pg43IAYlml5L12P2J@X0?olqCgl>7J~^X|b7u>j2Y40hP%oc)IlX1Q;0jG=SIy
dh=FGF1u!r$CIGPykR1cWDL`BR#1%l?005cvU&jCd
diff --git a/pc-bios/vof/ci.c b/pc-bios/vof/ci.c
index 2b56050238..fc4821b3e9 100644
--- a/pc-bios/vof/ci.c
+++ b/pc-bios/vof/ci.c
@@ -69,7 +69,7 @@ static int call_ci(const char *service, int nargs, int nret,
...)
}
if (ci_entry((uint32_t)(&args)) < 0) {
- return PROM_ERROR;
+ return -1;
}
return (nret > 0) ? args.args[nargs] : 0;
diff --git a/pc-bios/vof/libc.c b/pc-bios/vof/libc.c
index 00c10e6e7d..fdbc30f777 100644
--- a/pc-bios/vof/libc.c
+++ b/pc-bios/vof/libc.c
@@ -54,32 +54,6 @@ int memcmp(const void *ptr1, const void *ptr2, size_t n)
return 0;
}
-void *memmove(void *dest, const void *src, size_t n)
-{
- char *cdest;
- const char *csrc;
- int i;
-
- /* Do the buffers overlap in a bad way? */
- if (src < dest && src + n >= dest) {
- /* Copy from end to start */
- cdest = dest + n - 1;
- csrc = src + n - 1;
- for (i = 0; i < n; i++) {
- *cdest-- = *csrc--;
- }
- } else {
- /* Normal copy is possible */
- cdest = dest;
- csrc = src;
- for (i = 0; i < n; i++) {
- *cdest++ = *csrc++;
- }
- }
-
- return dest;
-}
-
void *memset(void *dest, int c, size_t size)
{
unsigned char *d = (unsigned char *)dest;
diff --git a/pc-bios/vof/main.c b/pc-bios/vof/main.c
index 9fc30d2d09..0f0f6b4cb1 100644
--- a/pc-bios/vof/main.c
+++ b/pc-bios/vof/main.c
@@ -6,7 +6,7 @@ void do_boot(unsigned long addr, unsigned long _r3, unsigned
long _r4)
register unsigned long r4 __asm__("r4") = _r4;
register unsigned long r5 __asm__("r5") = (unsigned long) _prom_entry;
- ((client *)(uint32_t)addr)();
+ ((void (*)(void))(uint32_t)addr)();
}
void entry_c(void)
diff --git a/pc-bios/vof/vof.h b/pc-bios/vof/vof.h
index 2d89580769..5f12c077f5 100644
--- a/pc-bios/vof/vof.h
+++ b/pc-bios/vof/vof.h
@@ -10,11 +10,9 @@ typedef unsigned short uint16_t;
typedef unsigned long uint32_t;
typedef unsigned long long uint64_t;
#define NULL (0)
-#define PROM_ERROR (-1u)
typedef unsigned long ihandle;
typedef unsigned long phandle;
typedef int size_t;
-typedef void client(void);
/* globals */
extern void _prom_entry(void); /* OF CI entry point (i.e. this firmware) */
--
2.31.1
