[PATCH v3 0/6] hw/{arm,xen} convert printfs to trace/reports

[PATCH v3 0/6] hw/{arm,xen} convert printfs to trace/reports

[Manos Pitsidianakis]

This series changes some printfs to use the trace event framework. 
Additionally, it converts some error/warning reporting fprintfs to 
error_report/warn_report.

v2 -> v3
<cover.1705670342.git.manos.pitsidianakis@linaro.org>:
    - addressed Peter Maydells's review

v1 -> v2
<cover.1705662313.git.manos.pitsidianakis@linaro.org>:
    - addressed Alex's review


Manos Pitsidianakis (6):
  hw/arm/strongarm.c: convert DPRINTF to trace events and guest errors
  hw/arm/z2: convert DPRINTF to trace events and guest errors
  hw/arm/xen_arm.c: convert DPRINTF to trace events and error/warn
    reports
  hw/xen/xen-mapcache.c: convert DPRINTF to tracepoints
  hw/xen/xen-hvm-common.c: convert DPRINTF to tracepoints
  hw/xen: convert stderr prints to error/warn reports

 hw/arm/strongarm.c      | 82 ++++++++++++++++++++++++++---------------
 hw/arm/trace-events     | 15 ++++++++
 hw/arm/xen_arm.c        | 23 ++++++------
 hw/arm/z2.c             | 27 ++++----------
 hw/xen/trace-events     | 21 ++++++++++-
 hw/xen/xen-hvm-common.c | 47 +++++++++++------------
 hw/xen/xen-mapcache.c   | 59 +++++++++++++----------------
 7 files changed, 156 insertions(+), 118 deletions(-)


base-commit: 7a1dc45af581d2b643cdbf33c01fd96271616fbd
-- 
γαῖα πυρί μιχθήτω

[PATCH v3 1/6] hw/arm/strongarm.c: convert DPRINTF to trace events and guest errors

[Manos Pitsidianakis]

Tracing DPRINTFs to stderr might not be desired. A developer that relies
on trace events should be able to opt-in to each trace event and rely on
QEMU's log redirection, instead of stderr by default.

This commit converts DPRINTFs in this file that are used for tracing
into trace events. DPRINTFs that report guest errors are logged with
LOG_GUEST_ERROR.#

Signed-off-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org>
---
 hw/arm/strongarm.c  | 82 ++++++++++++++++++++++++++++-----------------
 hw/arm/trace-events |  3 ++
 2 files changed, 55 insertions(+), 30 deletions(-)

diff --git a/hw/arm/strongarm.c b/hw/arm/strongarm.c
index 7fd99a0f14..823b4931b0 100644
--- a/hw/arm/strongarm.c
+++ b/hw/arm/strongarm.c
@@ -46,8 +46,7 @@
 #include "qemu/log.h"
 #include "qom/object.h"
 #include "target/arm/cpu-qom.h"
-
-//#define DEBUG
+#include "trace.h"
 
 /*
  TODO
@@ -66,12 +65,6 @@
  - Enhance UART with modem signals
  */
 
-#ifdef DEBUG
-# define DPRINTF(format, ...) printf(format , ## __VA_ARGS__)
-#else
-# define DPRINTF(format, ...) do { } while (0)
-#endif
-
 static struct {
     hwaddr io_base;
     int irq;
@@ -151,8 +144,9 @@ static uint64_t strongarm_pic_mem_read(void *opaque, hwaddr offset,
     case ICPR:
         return s->pending;
     default:
-        printf("%s: Bad register offset 0x" HWADDR_FMT_plx "\n",
-                        __func__, offset);
+        qemu_log_mask(LOG_GUEST_ERROR,
+                      "%s: Bad register offset 0x"HWADDR_FMT_plx"\n",
+                      __func__, offset);
         return 0;
     }
 }
@@ -173,8 +167,9 @@ static void strongarm_pic_mem_write(void *opaque, hwaddr offset,
         s->int_idle = (value & 1) ? 0 : ~0;
         break;
     default:
-        printf("%s: Bad register offset 0x" HWADDR_FMT_plx "\n",
-                        __func__, offset);
+        qemu_log_mask(LOG_GUEST_ERROR,
+                     "%s: Bad register offset 0x"HWADDR_FMT_plx"\n",
+                     __func__, offset);
         break;
     }
     strongarm_pic_update(s);
@@ -333,7 +328,9 @@ static uint64_t strongarm_rtc_read(void *opaque, hwaddr addr,
                 ((qemu_clock_get_ms(rtc_clock) - s->last_hz) << 15) /
                 (1000 * ((s->rttr & 0xffff) + 1));
     default:
-        printf("%s: Bad register 0x" HWADDR_FMT_plx "\n", __func__, addr);
+        qemu_log_mask(LOG_GUEST_ERROR,
+                      "%s: Bad rtc register read 0x"HWADDR_FMT_plx"\n",
+                      __func__, addr);
         return 0;
     }
 }
@@ -375,7 +372,9 @@ static void strongarm_rtc_write(void *opaque, hwaddr addr,
         break;
 
     default:
-        printf("%s: Bad register 0x" HWADDR_FMT_plx "\n", __func__, addr);
+        qemu_log_mask(LOG_GUEST_ERROR,
+                      "%s: Bad rtc register write 0x"HWADDR_FMT_plx"\n",
+                      __func__, addr);
     }
 }
 
@@ -556,12 +555,12 @@ static uint64_t strongarm_gpio_read(void *opaque, hwaddr offset,
 
     case GPSR:        /* GPIO Pin-Output Set registers */
         qemu_log_mask(LOG_GUEST_ERROR,
-                      "strongarm GPIO: read from write only register GPSR\n");
+                      "%s: read from write only register GPSR\n", __func__);
         return 0;
 
     case GPCR:        /* GPIO Pin-Output Clear registers */
         qemu_log_mask(LOG_GUEST_ERROR,
-                      "strongarm GPIO: read from write only register GPCR\n");
+                      "%s: read from write only register GPCR\n", __func__);
         return 0;
 
     case GRER:        /* GPIO Rising-Edge Detect Enable registers */
@@ -581,7 +580,9 @@ static uint64_t strongarm_gpio_read(void *opaque, hwaddr offset,
         return s->status;
 
     default:
-        printf("%s: Bad offset 0x" HWADDR_FMT_plx "\n", __func__, offset);
+        qemu_log_mask(LOG_GUEST_ERROR,
+                      "%s: Bad gpio read offset 0x"HWADDR_FMT_plx"\n",
+                      __func__, offset);
     }
 
     return 0;
@@ -626,7 +627,9 @@ static void strongarm_gpio_write(void *opaque, hwaddr offset,
         break;
 
     default:
-        printf("%s: Bad offset 0x" HWADDR_FMT_plx "\n", __func__, offset);
+        qemu_log_mask(LOG_GUEST_ERROR,
+                      "%s: Bad write offset 0x"HWADDR_FMT_plx"\n",
+                      __func__, offset);
     }
 }
 
@@ -782,7 +785,9 @@ static uint64_t strongarm_ppc_read(void *opaque, hwaddr offset,
         return s->ppfr | ~0x7f001;
 
     default:
-        printf("%s: Bad offset 0x" HWADDR_FMT_plx "\n", __func__, offset);
+        qemu_log_mask(LOG_GUEST_ERROR,
+                      "%s: Bad ppc read offset 0x"HWADDR_FMT_plx "\n",
+                      __func__, offset);
     }
 
     return 0;
@@ -817,7 +822,9 @@ static void strongarm_ppc_write(void *opaque, hwaddr offset,
         break;
 
     default:
-        printf("%s: Bad offset 0x" HWADDR_FMT_plx "\n", __func__, offset);
+        qemu_log_mask(LOG_GUEST_ERROR,
+                      "%s: Bad ppc write offset 0x"HWADDR_FMT_plx"\n",
+                      __func__, offset);
     }
 }
 
@@ -1029,8 +1036,13 @@ static void strongarm_uart_update_parameters(StrongARMUARTState *s)
     s->char_transmit_time =  (NANOSECONDS_PER_SECOND / speed) * frame_size;
     qemu_chr_fe_ioctl(&s->chr, CHR_IOCTL_SERIAL_SET_PARAMS, &ssp);
 
-    DPRINTF(stderr, "%s speed=%d parity=%c data=%d stop=%d\n", s->chr->label,
-            speed, parity, data_bits, stop_bits);
+    trace_strongarm_uart_update_parameters((s->chr.chr ?
+                                           s->chr.chr->label : "NULL") ?:
+                                           "NULL",
+                                           speed,
+                                           parity,
+                                           data_bits,
+                                           stop_bits);
 }
 
 static void strongarm_uart_rx_to(void *opaque)
@@ -1164,7 +1176,9 @@ static uint64_t strongarm_uart_read(void *opaque, hwaddr addr,
         return s->utsr1;
 
     default:
-        printf("%s: Bad register 0x" HWADDR_FMT_plx "\n", __func__, addr);
+        qemu_log_mask(LOG_GUEST_ERROR,
+                      "%s: Bad uart register read 0x"HWADDR_FMT_plx"\n",
+                      __func__, addr);
         return 0;
     }
 }
@@ -1221,7 +1235,9 @@ static void strongarm_uart_write(void *opaque, hwaddr addr,
         break;
 
     default:
-        printf("%s: Bad register 0x" HWADDR_FMT_plx "\n", __func__, addr);
+        qemu_log_mask(LOG_GUEST_ERROR,
+                      "%s: Bad uart register write 0x"HWADDR_FMT_plx"\n",
+                      __func__, addr);
     }
 }
 
@@ -1434,7 +1450,7 @@ static uint64_t strongarm_ssp_read(void *opaque, hwaddr addr,
             return 0xffffffff;
         }
         if (s->rx_level < 1) {
-            printf("%s: SSP Rx Underrun\n", __func__);
+            trace_strongarm_ssp_read_underrun();
             return 0xffffffff;
         }
         s->rx_level--;
@@ -1443,7 +1459,9 @@ static uint64_t strongarm_ssp_read(void *opaque, hwaddr addr,
         strongarm_ssp_fifo_update(s);
         return retval;
     default:
-        printf("%s: Bad register 0x" HWADDR_FMT_plx "\n", __func__, addr);
+        qemu_log_mask(LOG_GUEST_ERROR,
+                      "%s: Bad ssp register read 0x"HWADDR_FMT_plx"\n",
+                      __func__, addr);
         break;
     }
     return 0;
@@ -1458,8 +1476,8 @@ static void strongarm_ssp_write(void *opaque, hwaddr addr,
     case SSCR0:
         s->sscr[0] = value & 0xffbf;
         if ((s->sscr[0] & SSCR0_SSE) && SSCR0_DSS(value) < 4) {
-            printf("%s: Wrong data size: %i bits\n", __func__,
-                   (int)SSCR0_DSS(value));
+            qemu_log_mask(LOG_GUEST_ERROR, "%s: Wrong data size: %i bits\n",
+                          __func__, (int)SSCR0_DSS(value));
         }
         if (!(value & SSCR0_SSE)) {
             s->sssr = 0;
@@ -1471,7 +1489,9 @@ static void strongarm_ssp_write(void *opaque, hwaddr addr,
     case SSCR1:
         s->sscr[1] = value & 0x2f;
         if (value & SSCR1_LBM) {
-            printf("%s: Attempt to use SSP LBM mode\n", __func__);
+            qemu_log_mask(LOG_GUEST_ERROR,
+                          "%s: Attempt to use SSP LBM mode\n",
+                          __func__);
         }
         strongarm_ssp_fifo_update(s);
         break;
@@ -1509,7 +1529,9 @@ static void strongarm_ssp_write(void *opaque, hwaddr addr,
         break;
 
     default:
-        printf("%s: Bad register 0x" HWADDR_FMT_plx "\n", __func__, addr);
+        qemu_log_mask(LOG_GUEST_ERROR,
+                      "%s: Bad ssp register write 0x"HWADDR_FMT_plx"\n",
+                      __func__,  addr);
         break;
     }
 }
diff --git a/hw/arm/trace-events b/hw/arm/trace-events
index cdc1ea06a8..7c56943215 100644
--- a/hw/arm/trace-events
+++ b/hw/arm/trace-events
@@ -55,3 +55,6 @@ smmuv3_notify_flag_add(const char *iommu) "ADD SMMUNotifier node for iommu mr=%s
 smmuv3_notify_flag_del(const char *iommu) "DEL SMMUNotifier node for iommu mr=%s"
 smmuv3_inv_notifiers_iova(const char *name, uint16_t asid, uint16_t vmid, uint64_t iova, uint8_t tg, uint64_t num_pages) "iommu mr=%s asid=%d vmid=%d iova=0x%"PRIx64" tg=%d num_pages=0x%"PRIx64
 
+# strongarm.c
+strongarm_uart_update_parameters(const char *label, int speed, char parity, int data_bits, int stop_bits) "%s speed=%d parity=%c data=%d stop=%d"
+strongarm_ssp_read_underrun(void) "SSP rx underrun"
-- 
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[PATCH v3 2/6] hw/arm/z2: convert DPRINTF to trace events and guest errors

[Manos Pitsidianakis]

Tracing DPRINTFs to stderr might not be desired. A developer that relies
on trace events should be able to opt-in to each trace event and rely on
QEMU's log redirection, instead of stderr by default.

This commit converts DPRINTFs in this file that are used for tracing
into trace events. DPRINTFs that report guest errors are logged with
LOG_GUEST_ERROR.

Signed-off-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org>
---
 hw/arm/trace-events |  7 +++++++
 hw/arm/z2.c         | 27 ++++++++-------------------
 2 files changed, 15 insertions(+), 19 deletions(-)

diff --git a/hw/arm/trace-events b/hw/arm/trace-events
index 7c56943215..0ff41e6c78 100644
--- a/hw/arm/trace-events
+++ b/hw/arm/trace-events
@@ -58,3 +58,10 @@ smmuv3_inv_notifiers_iova(const char *name, uint16_t asid, uint16_t vmid, uint64
 # strongarm.c
 strongarm_uart_update_parameters(const char *label, int speed, char parity, int data_bits, int stop_bits) "%s speed=%d parity=%c data=%d stop=%d"
 strongarm_ssp_read_underrun(void) "SSP rx underrun"
+
+# z2.c
+z2_lcd_reg_update(uint8_t cur, uint8_t i_0, uint8_t i_1, uint8_t i_2, uint32_t value) "cur_reg = 0x%x, buf = [0x%x, 0x%x, 0x%x], value = 0x%x"
+z2_lcd_enable_disable_result(const char *result) "LCD %s"
+z2_aer915_send_too_long(int8_t msg) "message too long (%i bytes)"
+z2_aer915_send(uint8_t reg, uint8_t value) "reg %d value 0x%02x"
+z2_aer915_event(int8_t event, int8_t len) "i2c event =0x%x len=%d bytes"
diff --git a/hw/arm/z2.c b/hw/arm/z2.c
index a67fba2cfd..eb2ff8dbc8 100644
--- a/hw/arm/z2.c
+++ b/hw/arm/z2.c
@@ -27,13 +27,7 @@
 #include "exec/address-spaces.h"
 #include "qom/object.h"
 #include "qapi/error.h"
-
-#ifdef DEBUG_Z2
-#define DPRINTF(fmt, ...) \
-        printf(fmt, ## __VA_ARGS__)
-#else
-#define DPRINTF(fmt, ...)
-#endif
+#include "trace.h"
 
 static const struct keymap map[0x100] = {
     [0 ... 0xff] = { -1, -1 },
@@ -119,6 +113,8 @@ static uint32_t zipit_lcd_transfer(SSIPeripheral *dev, uint32_t value)
 {
     ZipitLCD *z = ZIPIT_LCD(dev);
     uint16_t val;
+
+    trace_z2_lcd_reg_update(z->cur_reg, z->buf[0], z->buf[1], z->buf[2], value);
     if (z->selected) {
         z->buf[z->pos] = value & 0xff;
         z->pos++;
@@ -126,22 +122,19 @@ static uint32_t zipit_lcd_transfer(SSIPeripheral *dev, uint32_t value)
     if (z->pos == 3) {
         switch (z->buf[0]) {
         case 0x74:
-            DPRINTF("%s: reg: 0x%.2x\n", __func__, z->buf[2]);
             z->cur_reg = z->buf[2];
             break;
         case 0x76:
             val = z->buf[1] << 8 | z->buf[2];
-            DPRINTF("%s: value: 0x%.4x\n", __func__, val);
             if (z->cur_reg == 0x22 && val == 0x0000) {
                 z->enabled = 1;
-                printf("%s: LCD enabled\n", __func__);
+                trace_z2_lcd_enable_disable_result("enabled");
             } else if (z->cur_reg == 0x10 && val == 0x0000) {
                 z->enabled = 0;
-                printf("%s: LCD disabled\n", __func__);
+                trace_z2_lcd_enable_disable_result("disabled");
             }
             break;
         default:
-            DPRINTF("%s: unknown command!\n", __func__);
             break;
         }
         z->pos = 0;
@@ -211,14 +204,12 @@ static int aer915_send(I2CSlave *i2c, uint8_t data)
 
     s->buf[s->len] = data;
     if (s->len++ > 2) {
-        DPRINTF("%s: message too long (%i bytes)\n",
-            __func__, s->len);
+        trace_z2_aer915_send_too_long(s->len);
         return 1;
     }
 
     if (s->len == 2) {
-        DPRINTF("%s: reg %d value 0x%02x\n", __func__,
-                s->buf[0], s->buf[1]);
+        trace_z2_aer915_send(s->buf[0], s->buf[1]);
     }
 
     return 0;
@@ -228,14 +219,12 @@ static int aer915_event(I2CSlave *i2c, enum i2c_event event)
 {
     AER915State *s = AER915(i2c);
 
+    trace_z2_aer915_event(s->len, event);
     switch (event) {
     case I2C_START_SEND:
         s->len = 0;
         break;
     case I2C_START_RECV:
-        if (s->len != 1) {
-            DPRINTF("%s: short message!?\n", __func__);
-        }
         break;
     case I2C_FINISH:
         break;
-- 
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[PATCH v3 3/6] hw/arm/xen_arm.c: convert DPRINTF to trace events and error/warn reports

[Manos Pitsidianakis]

Tracing DPRINTFs to stderr might not be desired. A developer that relies
on trace events should be able to opt-in to each trace event and rely on
QEMU's log redirection, instead of stderr by default.

This commit converts DPRINTFs in this file that are used for tracing
into trace events. Errors or warnings are converted to error_report and
warn_report calls.

Signed-off-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org>
---
 hw/arm/trace-events |  5 +++++
 hw/arm/xen_arm.c    | 23 +++++++++++------------
 2 files changed, 16 insertions(+), 12 deletions(-)

diff --git a/hw/arm/trace-events b/hw/arm/trace-events
index 0ff41e6c78..fd0d92762e 100644
--- a/hw/arm/trace-events
+++ b/hw/arm/trace-events
@@ -65,3 +65,8 @@ z2_lcd_enable_disable_result(const char *result) "LCD %s"
 z2_aer915_send_too_long(int8_t msg) "message too long (%i bytes)"
 z2_aer915_send(uint8_t reg, uint8_t value) "reg %d value 0x%02x"
 z2_aer915_event(int8_t event, int8_t len) "i2c event =0x%x len=%d bytes"
+
+# xen_arm.c
+xen_create_virtio_mmio_devices(int i, int irq, uint64_t base) "Created virtio-mmio device %d: irq %d base 0x%"PRIx64
+xen_init_ram(uint64_t machine_ram_size) "Initialized xen ram with size 0x%"PRIx64
+xen_enable_tpm(uint64_t addr) "Connected tpmdev at address 0x%"PRIx64
diff --git a/hw/arm/xen_arm.c b/hw/arm/xen_arm.c
index a5631529d0..32776d94df 100644
--- a/hw/arm/xen_arm.c
+++ b/hw/arm/xen_arm.c
@@ -34,6 +34,7 @@
 #include "hw/xen/xen-hvm-common.h"
 #include "sysemu/tpm.h"
 #include "hw/xen/arch_hvm.h"
+#include "trace.h"
 
 #define TYPE_XEN_ARM  MACHINE_TYPE_NAME("xenpvh")
 OBJECT_DECLARE_SIMPLE_TYPE(XenArmState, XEN_ARM)
@@ -91,8 +92,9 @@ static void xen_create_virtio_mmio_devices(XenArmState *xam)
 
         sysbus_create_simple("virtio-mmio", base, irq);
 
-        DPRINTF("Created virtio-mmio device %d: irq %d base 0x%lx\n",
-                i, GUEST_VIRTIO_MMIO_SPI_FIRST + i, base);
+        trace_xen_create_virtio_mmio_devices(i,
+                                             GUEST_VIRTIO_MMIO_SPI_FIRST + i,
+                                             base);
     }
 }
 
@@ -101,6 +103,7 @@ static void xen_init_ram(MachineState *machine)
     MemoryRegion *sysmem = get_system_memory();
     ram_addr_t block_len, ram_size[GUEST_RAM_BANKS];
 
+    trace_xen_init_ram(machine->ram_size);
     if (machine->ram_size <= GUEST_RAM0_SIZE) {
         ram_size[0] = machine->ram_size;
         ram_size[1] = 0;
@@ -117,15 +120,10 @@ static void xen_init_ram(MachineState *machine)
     memory_region_init_alias(&ram_lo, NULL, "xen.ram.lo", &ram_memory,
                              GUEST_RAM0_BASE, ram_size[0]);
     memory_region_add_subregion(sysmem, GUEST_RAM0_BASE, &ram_lo);
-    DPRINTF("Initialized region xen.ram.lo: base 0x%llx size 0x%lx\n",
-            GUEST_RAM0_BASE, ram_size[0]);
-
     if (ram_size[1] > 0) {
         memory_region_init_alias(&ram_hi, NULL, "xen.ram.hi", &ram_memory,
                                  GUEST_RAM1_BASE, ram_size[1]);
         memory_region_add_subregion(sysmem, GUEST_RAM1_BASE, &ram_hi);
-        DPRINTF("Initialized region xen.ram.hi: base 0x%llx size 0x%lx\n",
-                GUEST_RAM1_BASE, ram_size[1]);
     }
 }
 
@@ -158,7 +156,7 @@ static void xen_enable_tpm(XenArmState *xam)
 
     TPMBackend *be = qemu_find_tpm_be("tpm0");
     if (be == NULL) {
-        DPRINTF("Couldn't fine the backend for tpm0\n");
+        error_report("Couldn't find tmp0 backend");
         return;
     }
     dev = qdev_new(TYPE_TPM_TIS_SYSBUS);
@@ -168,7 +166,7 @@ static void xen_enable_tpm(XenArmState *xam)
     sysbus_realize_and_unref(busdev, &error_fatal);
     sysbus_mmio_map(busdev, 0, xam->cfg.tpm_base_addr);
 
-    DPRINTF("Connected tpmdev at address 0x%lx\n", xam->cfg.tpm_base_addr);
+    trace_xen_enable_tpm(xam->cfg.tpm_base_addr);
 }
 #endif
 
@@ -179,8 +177,9 @@ static void xen_arm_init(MachineState *machine)
     xam->state =  g_new0(XenIOState, 1);
 
     if (machine->ram_size == 0) {
-        DPRINTF("ram_size not specified. QEMU machine started without IOREQ"
-                "(no emulated devices including Virtio)\n");
+        warn_report("%s non-zero ram size not specified. QEMU machine started"
+                    " without IOREQ (no emulated devices including virtio)",
+                    MACHINE_CLASS(object_get_class(OBJECT(machine)))->desc);
         return;
     }
 
@@ -194,7 +193,7 @@ static void xen_arm_init(MachineState *machine)
     if (xam->cfg.tpm_base_addr) {
         xen_enable_tpm(xam);
     } else {
-        DPRINTF("tpm-base-addr is not provided. TPM will not be enabled\n");
+        warn_report("tpm-base-addr is not provided. TPM will not be enabled");
     }
 #endif
 }
-- 
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[PATCH v3 4/6] hw/xen/xen-mapcache.c: convert DPRINTF to tracepoints

[Manos Pitsidianakis]

Tracing DPRINTFs to stderr might not be desired. A developer that relies
on tracepoints should be able to opt-in to each tracepoint and rely on
QEMU's log redirection, instead of stderr by default.

This commit converts DPRINTFs in this file that are used for tracing
into tracepoints.

Signed-off-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org>
---
 hw/xen/trace-events   | 11 +++++++++
 hw/xen/xen-mapcache.c | 54 +++++++++++++++++++------------------------
 2 files changed, 35 insertions(+), 30 deletions(-)

diff --git a/hw/xen/trace-events b/hw/xen/trace-events
index 67a6c41926..a65dc0e55f 100644
--- a/hw/xen/trace-events
+++ b/hw/xen/trace-events
@@ -60,3 +60,14 @@ cpu_ioreq_config_write(void *req, uint32_t sbdf, uint32_t reg, uint32_t size, ui
 xen_map_cache(uint64_t phys_addr) "want 0x%"PRIx64
 xen_remap_bucket(uint64_t index) "index 0x%"PRIx64
 xen_map_cache_return(void* ptr) "%p"
+xen_map_cache_init(uint64_t nr_buckets, uint64_t size) "nr_buckets = 0x%"PRIx64" size 0x%"PRIx64
+xen_replace_cache_entry_dummy(uint64_t old_phys_addr, uint64_t new_phys_addr) "Replacing a dummy mapcache entry for 0x%"PRIx64" with 0x%"PRIx64
+xen_invalidate_map_cache_entry_unlocked_not_found(void *p) "could not find %p"
+xen_invalidate_map_cache_entry_unlocked_found(uint64_t addr, void *p) "   0x%"PRIx64" -> %p is present"
+xen_invalidate_map_cache_entry_unlocked_miss(void *buffer) "Trying to unmap address %p that is not in the mapcache"
+xen_replace_cache_entry_unlocked_could_not_update_entry(uint64_t old_phys_addr) "Unable to update a mapcache entry for 0x%"PRIx64
+xen_ram_addr_from_mapcache_not_found(void *p) "could not find %p"
+xen_ram_addr_from_mapcache_found(uint64_t addr, void *p) "   0x%"PRIx64" -> %p is present"
+xen_ram_addr_from_mapcache_not_in_cache(void *p) "Trying to find address %p that is not in the mapcache"
+xen_replace_cache_entry_unlocked(uint64_t old_phys_addr) "Trying to update an entry for 0x%"PRIx64" that is not in the mapcache"
+xen_invalidate_map_cache(uint64_t paddr_index, void *vaddr_req) "Locked DMA mapping while invalidating mapcache 0x%"PRIx64" -> %p is present"
diff --git a/hw/xen/xen-mapcache.c b/hw/xen/xen-mapcache.c
index f7d974677d..336c212376 100644
--- a/hw/xen/xen-mapcache.c
+++ b/hw/xen/xen-mapcache.c
@@ -22,16 +22,6 @@
 #include "trace.h"
 
 
-//#define MAPCACHE_DEBUG
-
-#ifdef MAPCACHE_DEBUG
-#  define DPRINTF(fmt, ...) do { \
-    fprintf(stderr, "xen_mapcache: " fmt, ## __VA_ARGS__); \
-} while (0)
-#else
-#  define DPRINTF(fmt, ...) do { } while (0)
-#endif
-
 #if HOST_LONG_BITS == 32
 #  define MCACHE_BUCKET_SHIFT 16
 #  define MCACHE_MAX_SIZE     (1UL<<31) /* 2GB Cap */
@@ -145,8 +135,7 @@ void xen_map_cache_init(phys_offset_to_gaddr_t f, void *opaque)
 
     size = mapcache->nr_buckets * sizeof (MapCacheEntry);
     size = (size + XC_PAGE_SIZE - 1) & ~(XC_PAGE_SIZE - 1);
-    DPRINTF("%s, nr_buckets = %lx size %lu\n", __func__,
-            mapcache->nr_buckets, size);
+    trace_xen_map_cache_init(mapcache->nr_buckets, size);
     mapcache->entry = g_malloc0(size);
 }
 
@@ -286,7 +275,9 @@ tryagain:
         test_bits(address_offset >> XC_PAGE_SHIFT,
                   test_bit_size >> XC_PAGE_SHIFT,
                   mapcache->last_entry->valid_mapping)) {
-        trace_xen_map_cache_return(mapcache->last_entry->vaddr_base + address_offset);
+        trace_xen_map_cache_return(
+            mapcache->last_entry->vaddr_base + address_offset
+        );
         return mapcache->last_entry->vaddr_base + address_offset;
     }
 
@@ -368,7 +359,9 @@ tryagain:
         QTAILQ_INSERT_HEAD(&mapcache->locked_entries, reventry, next);
     }
 
-    trace_xen_map_cache_return(mapcache->last_entry->vaddr_base + address_offset);
+    trace_xen_map_cache_return(
+        mapcache->last_entry->vaddr_base + address_offset
+    );
     return mapcache->last_entry->vaddr_base + address_offset;
 }
 
@@ -402,10 +395,10 @@ ram_addr_t xen_ram_addr_from_mapcache(void *ptr)
         }
     }
     if (!found) {
-        fprintf(stderr, "%s, could not find %p\n", __func__, ptr);
+        trace_xen_ram_addr_from_mapcache_not_found(ptr);
         QTAILQ_FOREACH(reventry, &mapcache->locked_entries, next) {
-            DPRINTF("   "HWADDR_FMT_plx" -> %p is present\n", reventry->paddr_index,
-                    reventry->vaddr_req);
+            trace_xen_ram_addr_from_mapcache_found(reventry->paddr_index,
+                                                   reventry->vaddr_req);
         }
         abort();
         return 0;
@@ -416,7 +409,7 @@ ram_addr_t xen_ram_addr_from_mapcache(void *ptr)
         entry = entry->next;
     }
     if (!entry) {
-        DPRINTF("Trying to find address %p that is not in the mapcache!\n", ptr);
+        trace_xen_ram_addr_from_mapcache_not_in_cache(ptr);
         raddr = 0;
     } else {
         raddr = (reventry->paddr_index << MCACHE_BUCKET_SHIFT) +
@@ -443,9 +436,12 @@ static void xen_invalidate_map_cache_entry_unlocked(uint8_t *buffer)
         }
     }
     if (!found) {
-        DPRINTF("%s, could not find %p\n", __func__, buffer);
+        trace_xen_invalidate_map_cache_entry_unlocked_not_found(buffer);
         QTAILQ_FOREACH(reventry, &mapcache->locked_entries, next) {
-            DPRINTF("   "HWADDR_FMT_plx" -> %p is present\n", reventry->paddr_index, reventry->vaddr_req);
+            trace_xen_invalidate_map_cache_entry_unlocked_found(
+                reventry->paddr_index,
+                reventry->vaddr_req
+            );
         }
         return;
     }
@@ -463,7 +459,7 @@ static void xen_invalidate_map_cache_entry_unlocked(uint8_t *buffer)
         entry = entry->next;
     }
     if (!entry) {
-        DPRINTF("Trying to unmap address %p that is not in the mapcache!\n", buffer);
+        trace_xen_invalidate_map_cache_entry_unlocked_miss(buffer);
         return;
     }
     entry->lock--;
@@ -502,9 +498,8 @@ void xen_invalidate_map_cache(void)
         if (!reventry->dma) {
             continue;
         }
-        fprintf(stderr, "Locked DMA mapping while invalidating mapcache!"
-                " "HWADDR_FMT_plx" -> %p is present\n",
-                reventry->paddr_index, reventry->vaddr_req);
+        trace_xen_invalidate_map_cache(reventry->paddr_index,
+                                       reventry->vaddr_req);
     }
 
     for (i = 0; i < mapcache->nr_buckets; i++) {
@@ -562,24 +557,23 @@ static uint8_t *xen_replace_cache_entry_unlocked(hwaddr old_phys_addr,
         entry = entry->next;
     }
     if (!entry) {
-        DPRINTF("Trying to update an entry for "HWADDR_FMT_plx \
-                "that is not in the mapcache!\n", old_phys_addr);
+        trace_xen_replace_cache_entry_unlocked(old_phys_addr);
         return NULL;
     }
 
     address_index  = new_phys_addr >> MCACHE_BUCKET_SHIFT;
     address_offset = new_phys_addr & (MCACHE_BUCKET_SIZE - 1);
 
-    fprintf(stderr, "Replacing a dummy mapcache entry for "HWADDR_FMT_plx \
-            " with "HWADDR_FMT_plx"\n", old_phys_addr, new_phys_addr);
+    trace_xen_replace_cache_entry_dummy(old_phys_addr, new_phys_addr);
 
     xen_remap_bucket(entry, entry->vaddr_base,
                      cache_size, address_index, false);
     if (!test_bits(address_offset >> XC_PAGE_SHIFT,
                 test_bit_size >> XC_PAGE_SHIFT,
                 entry->valid_mapping)) {
-        DPRINTF("Unable to update a mapcache entry for "HWADDR_FMT_plx"!\n",
-                old_phys_addr);
+        trace_xen_replace_cache_entry_unlocked_could_not_update_entry(
+            old_phys_addr
+        );
         return NULL;
     }
 
-- 
γαῖα πυρί μιχθήτω

[PATCH v3 5/6] hw/xen/xen-hvm-common.c: convert DPRINTF to tracepoints

[Manos Pitsidianakis]

Tracing DPRINTFs to stderr might not be desired. A developer that relies
on tracepoints should be able to opt-in to each tracepoint and rely on
QEMU's log redirection, instead of stderr by default.

This commit converts DPRINTFs in this file that are used for tracing
into tracepoints.

Signed-off-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org>
---
 hw/xen/trace-events     | 10 +++++++++-
 hw/xen/xen-hvm-common.c | 35 ++++++++++++++++++-----------------
 2 files changed, 27 insertions(+), 18 deletions(-)

diff --git a/hw/xen/trace-events b/hw/xen/trace-events
index a65dc0e55f..d1b27f6c11 100644
--- a/hw/xen/trace-events
+++ b/hw/xen/trace-events
@@ -42,7 +42,7 @@ xs_node_vscanf(char *path, char *value) "%s %s"
 xs_node_watch(char *path) "%s"
 xs_node_unwatch(char *path) "%s"
 
-# xen-hvm.c
+# xen-hvm-common.c
 xen_ram_alloc(unsigned long ram_addr, unsigned long size) "requested: 0x%lx, size 0x%lx"
 xen_client_set_memory(uint64_t start_addr, unsigned long size, bool log_dirty) "0x%"PRIx64" size 0x%lx, log_dirty %i"
 handle_ioreq(void *req, uint32_t type, uint32_t dir, uint32_t df, uint32_t data_is_ptr, uint64_t addr, uint64_t data, uint32_t count, uint32_t size) "I/O=%p type=%d dir=%d df=%d ptr=%d port=0x%"PRIx64" data=0x%"PRIx64" count=%d size=%d"
@@ -55,6 +55,14 @@ cpu_ioreq_move(void *req, uint32_t dir, uint32_t df, uint32_t data_is_ptr, uint6
 xen_map_resource_ioreq(uint32_t id, void *addr) "id: %u addr: %p"
 cpu_ioreq_config_read(void *req, uint32_t sbdf, uint32_t reg, uint32_t size, uint32_t data) "I/O=%p sbdf=0x%x reg=%u size=%u data=0x%x"
 cpu_ioreq_config_write(void *req, uint32_t sbdf, uint32_t reg, uint32_t size, uint32_t data) "I/O=%p sbdf=0x%x reg=%u size=%u data=0x%x"
+cpu_get_ioreq_from_shared_memory_req_not_ready(int state, int data_is_ptr, uint64_t addr, uint64_t data, uint32_t count, uint32_t size) "I/O request not ready: 0x%x, ptr: 0x%x, port: 0x%"PRIx64", data: 0x%"PRIx64", count: %u, size: %u"
+xen_main_loop_prepare_init_cpu(int id, void *cpu) "cpu_by_vcpu_id[%d]=%p"
+xen_map_ioreq_server_shared_page(long unsigned int ioreq_pfn) "shared page at pfn 0x%lx"
+xen_map_ioreq_server_buffered_io_page(long unsigned int ioreq_pfn) "buffered io page at pfn 0x%lx"
+xen_map_ioreq_server_buffered_io_evtchn(int bufioreq_evtchn) "buffered io evtchn is 0x%x"
+destroy_hvm_domain_cannot_acquire_handle(void) "Cannot acquire xenctrl handle"
+destroy_hvm_domain_failed_action(const char *action, int sts, char *errno_s) "xc_domain_shutdown failed to issue %s, sts %d, %s"
+destroy_hvm_domain_action(int xen_domid, const char *action) "Issued domain %d %s"
 
 # xen-mapcache.c
 xen_map_cache(uint64_t phys_addr) "want 0x%"PRIx64
diff --git a/hw/xen/xen-hvm-common.c b/hw/xen/xen-hvm-common.c
index 47e6cb1db3..05a29c6f11 100644
--- a/hw/xen/xen-hvm-common.c
+++ b/hw/xen/xen-hvm-common.c
@@ -169,11 +169,12 @@ static ioreq_t *cpu_get_ioreq_from_shared_memory(XenIOState *state, int vcpu)
     ioreq_t *req = xen_vcpu_ioreq(state->shared_page, vcpu);
 
     if (req->state != STATE_IOREQ_READY) {
-        DPRINTF("I/O request not ready: "
-                "%x, ptr: %x, port: %"PRIx64", "
-                "data: %"PRIx64", count: %u, size: %u\n",
-                req->state, req->data_is_ptr, req->addr,
-                req->data, req->count, req->size);
+        trace_cpu_get_ioreq_from_shared_memory_req_not_ready(req->state,
+                                                             req->data_is_ptr,
+                                                             req->addr,
+                                                             req->data,
+                                                             req->count,
+                                                             req->size);
         return NULL;
     }
 
@@ -601,10 +602,9 @@ static void xen_main_loop_prepare(XenIOState *state)
     if (evtchn_fd != -1) {
         CPUState *cpu_state;
 
-        DPRINTF("%s: Init cpu_by_vcpu_id\n", __func__);
         CPU_FOREACH(cpu_state) {
-            DPRINTF("%s: cpu_by_vcpu_id[%d]=%p\n",
-                    __func__, cpu_state->cpu_index, cpu_state);
+            trace_xen_main_loop_prepare_init_cpu(cpu_state->cpu_index,
+                                                 cpu_state);
             state->cpu_by_vcpu_id[cpu_state->cpu_index] = cpu_state;
         }
         qemu_set_fd_handler(evtchn_fd, cpu_handle_ioreq, NULL, state);
@@ -681,7 +681,7 @@ static int xen_map_ioreq_server(XenIOState *state)
     }
 
     if (state->shared_page == NULL) {
-        DPRINTF("shared page at pfn %lx\n", ioreq_pfn);
+        trace_xen_map_ioreq_server_shared_page(ioreq_pfn);
 
         state->shared_page = xenforeignmemory_map(xen_fmem, xen_domid,
                                                   PROT_READ | PROT_WRITE,
@@ -693,7 +693,7 @@ static int xen_map_ioreq_server(XenIOState *state)
     }
 
     if (state->buffered_io_page == NULL) {
-        DPRINTF("buffered io page at pfn %lx\n", bufioreq_pfn);
+        trace_xen_map_ioreq_server_buffered_io_page(bufioreq_pfn);
 
         state->buffered_io_page = xenforeignmemory_map(xen_fmem, xen_domid,
                                                        PROT_READ | PROT_WRITE,
@@ -709,7 +709,7 @@ static int xen_map_ioreq_server(XenIOState *state)
         return -1;
     }
 
-    DPRINTF("buffered io evtchn is %x\n", bufioreq_evtchn);
+    trace_xen_map_ioreq_server_buffered_io_evtchn(bufioreq_evtchn);
 
     state->bufioreq_remote_port = bufioreq_evtchn;
 
@@ -737,16 +737,17 @@ void destroy_hvm_domain(bool reboot)
 
     xc_handle = xc_interface_open(0, 0, 0);
     if (xc_handle == NULL) {
-        fprintf(stderr, "Cannot acquire xenctrl handle\n");
+        trace_destroy_hvm_domain_cannot_acquire_handle();
     } else {
         sts = xc_domain_shutdown(xc_handle, xen_domid, reason);
         if (sts != 0) {
-            fprintf(stderr, "xc_domain_shutdown failed to issue %s, "
-                    "sts %d, %s\n", reboot ? "reboot" : "poweroff",
-                    sts, strerror(errno));
+            trace_destroy_hvm_domain_failed_action(
+                reboot ? "reboot" : "poweroff", sts, strerror(errno)
+            );
         } else {
-            fprintf(stderr, "Issued domain %d %s\n", xen_domid,
-                    reboot ? "reboot" : "poweroff");
+            trace_destroy_hvm_domain_action(
+                xen_domid, reboot ? "reboot" : "poweroff"
+            );
         }
         xc_interface_close(xc_handle);
     }
-- 
γαῖα πυρί μιχθήτω

[PATCH v3 6/6] hw/xen: convert stderr prints to error/warn reports

[Manos Pitsidianakis]

According to the QEMU Coding Style document:

> Do not use printf(), fprintf() or monitor_printf(). Instead, use
> error_report() or error_vreport() from error-report.h. This ensures the
> error is reported in the right place (current monitor or stderr), and in
> a uniform format.
> Use error_printf() & friends to print additional information.

This commit changes fprintfs that report warnings and errors to the
appropriate report functions.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org>
---
 hw/xen/xen-hvm-common.c | 12 ++++++------
 hw/xen/xen-mapcache.c   |  5 ++---
 2 files changed, 8 insertions(+), 9 deletions(-)

diff --git a/hw/xen/xen-hvm-common.c b/hw/xen/xen-hvm-common.c
index 05a29c6f11..baa1adb9f2 100644
--- a/hw/xen/xen-hvm-common.c
+++ b/hw/xen/xen-hvm-common.c
@@ -20,8 +20,8 @@ void xen_ram_alloc(ram_addr_t ram_addr, ram_addr_t size, MemoryRegion *mr,
 
     if (runstate_check(RUN_STATE_INMIGRATE)) {
         /* RAM already populated in Xen */
-        fprintf(stderr, "%s: do not alloc "RAM_ADDR_FMT
-                " bytes of ram at "RAM_ADDR_FMT" when runstate is INMIGRATE\n",
+        warn_report("%s: do not alloc "RAM_ADDR_FMT
+                " bytes of ram at "RAM_ADDR_FMT" when runstate is INMIGRATE",
                 __func__, size, ram_addr);
         return;
     }
@@ -552,9 +552,9 @@ static void cpu_handle_ioreq(void *opaque)
         req->data = copy.data;
 
         if (req->state != STATE_IOREQ_INPROCESS) {
-            fprintf(stderr, "Badness in I/O request ... not in service?!: "
+            warn_report("Badness in I/O request ... not in service?!: "
                     "%x, ptr: %x, port: %"PRIx64", "
-                    "data: %"PRIx64", count: %u, size: %u, type: %u\n",
+                    "data: %"PRIx64", count: %u, size: %u, type: %u",
                     req->state, req->data_is_ptr, req->addr,
                     req->data, req->count, req->size, req->type);
             destroy_hvm_domain(false);
@@ -758,9 +758,9 @@ void xen_shutdown_fatal_error(const char *fmt, ...)
     va_list ap;
 
     va_start(ap, fmt);
-    vfprintf(stderr, fmt, ap);
+    error_vreport(fmt, ap);
     va_end(ap);
-    fprintf(stderr, "Will destroy the domain.\n");
+    error_report("Will destroy the domain.");
     /* destroy the domain */
     qemu_system_shutdown_request(SHUTDOWN_CAUSE_HOST_ERROR);
 }
diff --git a/hw/xen/xen-mapcache.c b/hw/xen/xen-mapcache.c
index 336c212376..4f956d048e 100644
--- a/hw/xen/xen-mapcache.c
+++ b/hw/xen/xen-mapcache.c
@@ -347,9 +347,8 @@ tryagain:
         MapCacheRev *reventry = g_new0(MapCacheRev, 1);
         entry->lock++;
         if (entry->lock == 0) {
-            fprintf(stderr,
-                    "mapcache entry lock overflow: "HWADDR_FMT_plx" -> %p\n",
-                    entry->paddr_index, entry->vaddr_base);
+            error_report("mapcache entry lock overflow: "HWADDR_FMT_plx" -> %p",
+                         entry->paddr_index, entry->vaddr_base);
             abort();
         }
         reventry->dma = dma;
-- 
γαῖα πυρί μιχθήτω

Re: [PATCH v3 1/6] hw/arm/strongarm.c: convert DPRINTF to trace events and guest errors

[Alex Bennée]

Manos Pitsidianakis <manos.pitsidianakis@linaro.org> writes:

> Tracing DPRINTFs to stderr might not be desired. A developer that relies
> on trace events should be able to opt-in to each trace event and rely on
> QEMU's log redirection, instead of stderr by default.
>
> This commit converts DPRINTFs in this file that are used for tracing
> into trace events. DPRINTFs that report guest errors are logged with
> LOG_GUEST_ERROR.#
>
> Signed-off-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org>

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>

-- 
Alex Bennée
Virtualisation Tech Lead @ Linaro

Re: [PATCH v3 2/6] hw/arm/z2: convert DPRINTF to trace events and guest errors

[Alex Bennée]

Manos Pitsidianakis <manos.pitsidianakis@linaro.org> writes:

> Tracing DPRINTFs to stderr might not be desired. A developer that relies
> on trace events should be able to opt-in to each trace event and rely on
> QEMU's log redirection, instead of stderr by default.
>
> This commit converts DPRINTFs in this file that are used for tracing
> into trace events. DPRINTFs that report guest errors are logged with
> LOG_GUEST_ERROR.
>
> Signed-off-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org>

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>

-- 
Alex Bennée
Virtualisation Tech Lead @ Linaro

Re: [PATCH v3 3/6] hw/arm/xen_arm.c: convert DPRINTF to trace events and error/warn reports

[Alex Bennée]

Manos Pitsidianakis <manos.pitsidianakis@linaro.org> writes:

> Tracing DPRINTFs to stderr might not be desired. A developer that relies
> on trace events should be able to opt-in to each trace event and rely on
> QEMU's log redirection, instead of stderr by default.
>
> This commit converts DPRINTFs in this file that are used for tracing
> into trace events. Errors or warnings are converted to error_report and
> warn_report calls.
>
> Signed-off-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org>

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>

-- 
Alex Bennée
Virtualisation Tech Lead @ Linaro

Re: [PATCH v3 4/6] hw/xen/xen-mapcache.c: convert DPRINTF to tracepoints

[Alex Bennée]

Manos Pitsidianakis <manos.pitsidianakis@linaro.org> writes:

> Tracing DPRINTFs to stderr might not be desired. A developer that relies
> on tracepoints should be able to opt-in to each tracepoint and rely on
> QEMU's log redirection, instead of stderr by default.
>
> This commit converts DPRINTFs in this file that are used for tracing
> into tracepoints.
>
> Signed-off-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org>

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>

-- 
Alex Bennée
Virtualisation Tech Lead @ Linaro

Re: [PATCH v3 5/6] hw/xen/xen-hvm-common.c: convert DPRINTF to tracepoints

[Alex Bennée]

Manos Pitsidianakis <manos.pitsidianakis@linaro.org> writes:

> Tracing DPRINTFs to stderr might not be desired. A developer that relies
> on tracepoints should be able to opt-in to each tracepoint and rely on
> QEMU's log redirection, instead of stderr by default.
>
> This commit converts DPRINTFs in this file that are used for tracing
> into tracepoints.
>
> Signed-off-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org>

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>

-- 
Alex Bennée
Virtualisation Tech Lead @ Linaro

Re: [PATCH v3 6/6] hw/xen: convert stderr prints to error/warn reports

[Alex Bennée]

Manos Pitsidianakis <manos.pitsidianakis@linaro.org> writes:

> According to the QEMU Coding Style document:
>
>> Do not use printf(), fprintf() or monitor_printf(). Instead, use
>> error_report() or error_vreport() from error-report.h. This ensures the
>> error is reported in the right place (current monitor or stderr), and in
>> a uniform format.
>> Use error_printf() & friends to print additional information.
>
> This commit changes fprintfs that report warnings and errors to the
> appropriate report functions.
>
> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
> Signed-off-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org>

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>

-- 
Alex Bennée
Virtualisation Tech Lead @ Linaro

Re: [PATCH v3 0/6] hw/{arm,xen} convert printfs to trace/reports

[Peter Maydell]

On Mon, 29 Jan 2024 at 16:10, Manos Pitsidianakis
<manos.pitsidianakis@linaro.org> wrote:
>
> This series changes some printfs to use the trace event framework.
> Additionally, it converts some error/warning reporting fprintfs to
> error_report/warn_report.
>
> v2 -> v3
> <cover.1705670342.git.manos.pitsidianakis@linaro.org>:
>     - addressed Peter Maydells's review
>
> v1 -> v2
> <cover.1705662313.git.manos.pitsidianakis@linaro.org>:
>     - addressed Alex's review
>
>
> Manos Pitsidianakis (6):
>   hw/arm/strongarm.c: convert DPRINTF to trace events and guest errors
>   hw/arm/z2: convert DPRINTF to trace events and guest errors
>   hw/arm/xen_arm.c: convert DPRINTF to trace events and error/warn
>     reports
>   hw/xen/xen-mapcache.c: convert DPRINTF to tracepoints
>   hw/xen/xen-hvm-common.c: convert DPRINTF to tracepoints
>   hw/xen: convert stderr prints to error/warn reports


Applied to target-arm.next, thanks.

-- PMM