From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:38186) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fVCzJ-0005R4-DF for qemu-devel@nongnu.org; Tue, 19 Jun 2018 05:31:46 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1fVCzH-0006Jh-TV for qemu-devel@nongnu.org; Tue, 19 Jun 2018 05:31:45 -0400 From: luc.michel@greensocs.com Date: Tue, 19 Jun 2018 11:31:23 +0200 Message-Id: <20180619093124.24011-7-luc.michel@greensocs.com> In-Reply-To: <20180619093124.24011-1-luc.michel@greensocs.com> References: <20180619093124.24011-1-luc.michel@greensocs.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Subject: [Qemu-devel] [PATCH v2 6/7] intc/arm_gic: Improve traces List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: Luc MICHEL , qemu-arm@nongnu.org, Peter Maydell , saipava@xilinx.com, edgari@xilinx.com, mark.burton@greensocs.com, Jan Kiszka From: Luc MICHEL Add some traces to the ARM GIC to catch register accesses (distributor, (v)cpu interface and virtual interface), and to take into account virtualization extensions (print `vcpu` instead of `cpu` when needed). Also add some virtualization extensions specific traces: LR updating and maintenance IRQ generation. Signed-off-by: Luc MICHEL Reviewed-by: Philippe Mathieu-Daud=C3=A9 --- hw/intc/arm_gic.c | 31 +++++++++++++++++++++++++------ hw/intc/trace-events | 12 ++++++++++-- 2 files changed, 35 insertions(+), 8 deletions(-) diff --git a/hw/intc/arm_gic.c b/hw/intc/arm_gic.c index 834caa8504..a128fb3f4d 100644 --- a/hw/intc/arm_gic.c +++ b/hw/intc/arm_gic.c @@ -179,8 +179,10 @@ static inline void gic_update_internal(GICState *s, = bool virt) } =20 if (best_irq !=3D 1023) { - trace_gic_update_bestirq(cpu, best_irq, best_prio, - s->priority_mask[cpu_iface], s->running_priority[cpu_ifa= ce]); + trace_gic_update_bestirq(virt ? "vcpu" : "cpu", cpu, + best_irq, best_prio, + s->priority_mask[cpu_iface], + s->running_priority[cpu_iface]); } =20 irq_level =3D fiq_level =3D 0; @@ -268,6 +270,7 @@ static void gic_update_maintenance(GICState *s) gic_compute_misr(s, cpu); maint_level =3D (s->h_hcr[cpu] & GICH_HCR_EN) && s->h_misr[cpu]; =20 + trace_gic_update_maintenance_irq(cpu, maint_level); qemu_set_irq(s->maintenance_irq[cpu], maint_level); } } @@ -539,7 +542,8 @@ uint32_t gic_acknowledge_irq(GICState *s, int cpu, Me= mTxAttrs attrs) * is in the wrong group. */ irq =3D gic_get_current_pending_irq(s, cpu, attrs); - trace_gic_acknowledge_irq(gic_get_vcpu_real_id(cpu), irq); + trace_gic_acknowledge_irq(gic_is_vcpu(cpu) ? "vcpu" : "cpu", + gic_get_vcpu_real_id(cpu), irq); =20 if (irq >=3D GIC_MAXIRQ) { DPRINTF("ACK, no pending interrupt or it is hidden: %d\n", irq); @@ -1017,20 +1021,23 @@ static MemTxResult gic_dist_read(void *opaque, hw= addr offset, uint64_t *data, switch (size) { case 1: *data =3D gic_dist_readb(opaque, offset, attrs); - return MEMTX_OK; + break; case 2: *data =3D gic_dist_readb(opaque, offset, attrs); *data |=3D gic_dist_readb(opaque, offset + 1, attrs) << 8; - return MEMTX_OK; + break; case 4: *data =3D gic_dist_readb(opaque, offset, attrs); *data |=3D gic_dist_readb(opaque, offset + 1, attrs) << 8; *data |=3D gic_dist_readb(opaque, offset + 2, attrs) << 16; *data |=3D gic_dist_readb(opaque, offset + 3, attrs) << 24; - return MEMTX_OK; + break; default: return MEMTX_ERROR; } + + trace_gic_dist_read(offset, size, *data); + return MEMTX_OK; } =20 static void gic_dist_writeb(void *opaque, hwaddr offset, @@ -1324,6 +1331,8 @@ static void gic_dist_writel(void *opaque, hwaddr of= fset, static MemTxResult gic_dist_write(void *opaque, hwaddr offset, uint64_t = data, unsigned size, MemTxAttrs attrs) { + trace_gic_dist_write(offset, size, data); + switch (size) { case 1: gic_dist_writeb(opaque, offset, data, attrs); @@ -1480,12 +1489,18 @@ static MemTxResult gic_cpu_read(GICState *s, int = cpu, int offset, *data =3D 0; break; } + + trace_gic_cpu_read(gic_is_vcpu(cpu) ? "vcpu" : "cpu", + gic_get_vcpu_real_id(cpu), offset, *data); return MEMTX_OK; } =20 static MemTxResult gic_cpu_write(GICState *s, int cpu, int offset, uint32_t value, MemTxAttrs attrs) { + trace_gic_cpu_write(gic_is_vcpu(cpu) ? "vcpu" : "cpu", + gic_get_vcpu_real_id(cpu), offset, value); + switch (offset) { case 0x00: /* Control */ gic_set_cpu_control(s, cpu, value, attrs); @@ -1698,6 +1713,7 @@ static void gic_set_lr_entry(GICState *s, int cpu, = int lr_num, uint32_t entry) } =20 s->h_lr[lr_num][cpu] =3D entry; + trace_gic_lr_entry(cpu, lr_num, entry); is_free =3D gic_lr_update(s, lr_num, cpu); =20 if (!is_free) { @@ -1768,6 +1784,7 @@ static MemTxResult gic_hyp_read(void *opaque, hwadd= r addr, uint64_t *data, return MEMTX_OK; } =20 + trace_gic_hyp_read(addr, *data); return MEMTX_OK; } =20 @@ -1777,6 +1794,8 @@ static MemTxResult gic_hyp_write(void *opaque, hwad= dr addr, uint64_t value, GICState *s =3D ARM_GIC(opaque); int cpu =3D gic_get_current_cpu(s); =20 + trace_gic_hyp_write(addr, value); + switch (addr) { case 0x0: /* Hypervisor Control */ s->h_hcr[cpu] =3D value & 0xf80000ff; diff --git a/hw/intc/trace-events b/hw/intc/trace-events index 55e8c2570c..16d02fa8cf 100644 --- a/hw/intc/trace-events +++ b/hw/intc/trace-events @@ -92,9 +92,17 @@ aspeed_vic_write(uint64_t offset, unsigned size, uint3= 2_t data) "To 0x%" PRIx64 gic_enable_irq(int irq) "irq %d enabled" gic_disable_irq(int irq) "irq %d disabled" gic_set_irq(int irq, int level, int cpumask, int target) "irq %d level %= d cpumask 0x%x target 0x%x" -gic_update_bestirq(int cpu, int irq, int prio, int priority_mask, int ru= nning_priority) "cpu %d irq %d priority %d cpu priority mask %d cpu runni= ng priority %d" +gic_update_bestirq(const char *s, int cpu, int irq, int prio, int priori= ty_mask, int running_priority) "%s %d irq %d priority %d cpu priority mas= k %d cpu running priority %d" gic_update_set_irq(int cpu, const char *name, int level) "cpu[%d]: %s =3D= %d" -gic_acknowledge_irq(int cpu, int irq) "cpu %d acknowledged irq %d" +gic_acknowledge_irq(const char *s, int cpu, int irq) "%s %d acknowledged= irq %d" +gic_cpu_write(const char *s, int cpu, int addr, uint32_t val) "%s %d ifa= ce write at 0x%08x 0x%08" PRIx32 +gic_cpu_read(const char *s, int cpu, int addr, uint32_t val) "%s %d ifac= e write at 0x%08x: 0x%08" PRIx32 +gic_hyp_read(int addr, uint32_t val) "hyp read at 0x%08x: 0x%08" PRIx32 +gic_hyp_write(int addr, uint32_t val) "hyp write at 0x%08x: 0x%08" PRIx3= 2 +gic_dist_read(int addr, unsigned int size, uint32_t val) "dist read at 0= x%08x size %u: 0x%08" PRIx32 +gic_dist_write(int addr, unsigned int size, uint32_t val) "dist write at= 0x%08x size %u: 0x%08" PRIx32 +gic_lr_entry(int cpu, int entry, uint32_t val) "cpu %d: new lr entry %d:= 0x%08" PRIx32 +gic_update_maintenance_irq(int cpu, int val) "cpu %d: maintenance =3D %d= " =20 # hw/intc/arm_gicv3_cpuif.c gicv3_icc_pmr_read(uint32_t cpu, uint64_t val) "GICv3 ICC_PMR read cpu 0= x%x value 0x%" PRIx64 --=20 2.17.1