Re: [Qemu-devel] [PATCH for-3.2 2/7] tests/libqos/pci: Make PCI access functions independent of global_qtest

[Paolo Bonzini <pbonzini@redhat.com>]

On 12/11/2018 20:08, Thomas Huth wrote:
> QPCIBus already tracks QTestState, so use that state instead of an
> implicit reliance on global_qtest.
> 
> Based on an earlier patch ("libqos: Use explicit QTestState for pci
> operations") from Eric Blake.
> 
> Signed-off-by: Thomas Huth <thuth@redhat.com>

This will be converted to qgraph, so I think this patch can be dropped.
 I'll send the qgraph patches tomorrow.

Paolo

> ---
>  tests/libqos/pci-pc.c    | 47 ++++++++++++++++++++++++-----------------------
>  tests/libqos/pci-spapr.c | 20 ++++++++++----------
>  2 files changed, 34 insertions(+), 33 deletions(-)
> 
> diff --git a/tests/libqos/pci-pc.c b/tests/libqos/pci-pc.c
> index 585f528..a4fc02b 100644
> --- a/tests/libqos/pci-pc.c
> +++ b/tests/libqos/pci-pc.c
> @@ -29,90 +29,91 @@ typedef struct QPCIBusPC
>  
>  static uint8_t qpci_pc_pio_readb(QPCIBus *bus, uint32_t addr)
>  {
> -    return inb(addr);
> +    return qtest_inb(bus->qts, addr);
>  }
>  
>  static void qpci_pc_pio_writeb(QPCIBus *bus, uint32_t addr, uint8_t val)
>  {
> -    outb(addr, val);
> +    qtest_outb(bus->qts, addr, val);
>  }
>  
>  static uint16_t qpci_pc_pio_readw(QPCIBus *bus, uint32_t addr)
>  {
> -    return inw(addr);
> +    return qtest_inw(bus->qts, addr);
>  }
>  
>  static void qpci_pc_pio_writew(QPCIBus *bus, uint32_t addr, uint16_t val)
>  {
> -    outw(addr, val);
> +    qtest_outw(bus->qts, addr, val);
>  }
>  
>  static uint32_t qpci_pc_pio_readl(QPCIBus *bus, uint32_t addr)
>  {
> -    return inl(addr);
> +    return qtest_inl(bus->qts, addr);
>  }
>  
>  static void qpci_pc_pio_writel(QPCIBus *bus, uint32_t addr, uint32_t val)
>  {
> -    outl(addr, val);
> +    qtest_outl(bus->qts, addr, val);
>  }
>  
>  static uint64_t qpci_pc_pio_readq(QPCIBus *bus, uint32_t addr)
>  {
> -    return (uint64_t)inl(addr) + ((uint64_t)inl(addr + 4) << 32);
> +    return (uint64_t)qtest_inl(bus->qts, addr) +
> +        ((uint64_t)qtest_inl(bus->qts, addr + 4) << 32);
>  }
>  
>  static void qpci_pc_pio_writeq(QPCIBus *bus, uint32_t addr, uint64_t val)
>  {
> -    outl(addr, val & 0xffffffff);
> -    outl(addr + 4, val >> 32);
> +    qtest_outl(bus->qts, addr, val & 0xffffffff);
> +    qtest_outl(bus->qts, addr + 4, val >> 32);
>  }
>  
>  static void qpci_pc_memread(QPCIBus *bus, uint32_t addr, void *buf, size_t len)
>  {
> -    memread(addr, buf, len);
> +    qtest_memread(bus->qts, addr, buf, len);
>  }
>  
>  static void qpci_pc_memwrite(QPCIBus *bus, uint32_t addr,
>                               const void *buf, size_t len)
>  {
> -    memwrite(addr, buf, len);
> +    qtest_memwrite(bus->qts, addr, buf, len);
>  }
>  
>  static uint8_t qpci_pc_config_readb(QPCIBus *bus, int devfn, uint8_t offset)
>  {
> -    outl(0xcf8, (1U << 31) | (devfn << 8) | offset);
> -    return inb(0xcfc);
> +    qtest_outl(bus->qts, 0xcf8, (1U << 31) | (devfn << 8) | offset);
> +    return qtest_inb(bus->qts, 0xcfc);
>  }
>  
>  static uint16_t qpci_pc_config_readw(QPCIBus *bus, int devfn, uint8_t offset)
>  {
> -    outl(0xcf8, (1U << 31) | (devfn << 8) | offset);
> -    return inw(0xcfc);
> +    qtest_outl(bus->qts, 0xcf8, (1U << 31) | (devfn << 8) | offset);
> +    return qtest_inw(bus->qts, 0xcfc);
>  }
>  
>  static uint32_t qpci_pc_config_readl(QPCIBus *bus, int devfn, uint8_t offset)
>  {
> -    outl(0xcf8, (1U << 31) | (devfn << 8) | offset);
> -    return inl(0xcfc);
> +    qtest_outl(bus->qts, 0xcf8, (1U << 31) | (devfn << 8) | offset);
> +    return qtest_inl(bus->qts, 0xcfc);
>  }
>  
>  static void qpci_pc_config_writeb(QPCIBus *bus, int devfn, uint8_t offset, uint8_t value)
>  {
> -    outl(0xcf8, (1U << 31) | (devfn << 8) | offset);
> -    outb(0xcfc, value);
> +    qtest_outl(bus->qts, 0xcf8, (1U << 31) | (devfn << 8) | offset);
> +    qtest_outb(bus->qts, 0xcfc, value);
>  }
>  
>  static void qpci_pc_config_writew(QPCIBus *bus, int devfn, uint8_t offset, uint16_t value)
>  {
> -    outl(0xcf8, (1U << 31) | (devfn << 8) | offset);
> -    outw(0xcfc, value);
> +    qtest_outl(bus->qts, 0xcf8, (1U << 31) | (devfn << 8) | offset);
> +    qtest_outw(bus->qts, 0xcfc, value);
>  }
>  
>  static void qpci_pc_config_writel(QPCIBus *bus, int devfn, uint8_t offset, uint32_t value)
>  {
> -    outl(0xcf8, (1U << 31) | (devfn << 8) | offset);
> -    outl(0xcfc, value);
> +    qtest_outl(bus->qts, 0xcf8, (1U << 31) | (devfn << 8) | offset);
> +    qtest_outl(bus->qts, 0xcfc, value);
>  }
>  
>  QPCIBus *qpci_init_pc(QTestState *qts, QGuestAllocator *alloc)
> diff --git a/tests/libqos/pci-spapr.c b/tests/libqos/pci-spapr.c
> index c0f7e6d..4c29889 100644
> --- a/tests/libqos/pci-spapr.c
> +++ b/tests/libqos/pci-spapr.c
> @@ -45,63 +45,63 @@ typedef struct QPCIBusSPAPR {
>  static uint8_t qpci_spapr_pio_readb(QPCIBus *bus, uint32_t addr)
>  {
>      QPCIBusSPAPR *s = container_of(bus, QPCIBusSPAPR, bus);
> -    return readb(s->pio_cpu_base + addr);
> +    return qtest_readb(bus->qts, s->pio_cpu_base + addr);
>  }
>  
>  static void qpci_spapr_pio_writeb(QPCIBus *bus, uint32_t addr, uint8_t val)
>  {
>      QPCIBusSPAPR *s = container_of(bus, QPCIBusSPAPR, bus);
> -    writeb(s->pio_cpu_base + addr, val);
> +    qtest_writeb(bus->qts, s->pio_cpu_base + addr, val);
>  }
>  
>  static uint16_t qpci_spapr_pio_readw(QPCIBus *bus, uint32_t addr)
>  {
>      QPCIBusSPAPR *s = container_of(bus, QPCIBusSPAPR, bus);
> -    return bswap16(readw(s->pio_cpu_base + addr));
> +    return bswap16(qtest_readw(bus->qts, s->pio_cpu_base + addr));
>  }
>  
>  static void qpci_spapr_pio_writew(QPCIBus *bus, uint32_t addr, uint16_t val)
>  {
>      QPCIBusSPAPR *s = container_of(bus, QPCIBusSPAPR, bus);
> -    writew(s->pio_cpu_base + addr, bswap16(val));
> +    qtest_writew(bus->qts, s->pio_cpu_base + addr, bswap16(val));
>  }
>  
>  static uint32_t qpci_spapr_pio_readl(QPCIBus *bus, uint32_t addr)
>  {
>      QPCIBusSPAPR *s = container_of(bus, QPCIBusSPAPR, bus);
> -    return bswap32(readl(s->pio_cpu_base + addr));
> +    return bswap32(qtest_readl(bus->qts, s->pio_cpu_base + addr));
>  }
>  
>  static void qpci_spapr_pio_writel(QPCIBus *bus, uint32_t addr, uint32_t val)
>  {
>      QPCIBusSPAPR *s = container_of(bus, QPCIBusSPAPR, bus);
> -    writel(s->pio_cpu_base + addr, bswap32(val));
> +    qtest_writel(bus->qts, s->pio_cpu_base + addr, bswap32(val));
>  }
>  
>  static uint64_t qpci_spapr_pio_readq(QPCIBus *bus, uint32_t addr)
>  {
>      QPCIBusSPAPR *s = container_of(bus, QPCIBusSPAPR, bus);
> -    return bswap64(readq(s->pio_cpu_base + addr));
> +    return bswap64(qtest_readq(bus->qts, s->pio_cpu_base + addr));
>  }
>  
>  static void qpci_spapr_pio_writeq(QPCIBus *bus, uint32_t addr, uint64_t val)
>  {
>      QPCIBusSPAPR *s = container_of(bus, QPCIBusSPAPR, bus);
> -    writeq(s->pio_cpu_base + addr, bswap64(val));
> +    qtest_writeq(bus->qts, s->pio_cpu_base + addr, bswap64(val));
>  }
>  
>  static void qpci_spapr_memread(QPCIBus *bus, uint32_t addr,
>                                 void *buf, size_t len)
>  {
>      QPCIBusSPAPR *s = container_of(bus, QPCIBusSPAPR, bus);
> -    memread(s->mmio32_cpu_base + addr, buf, len);
> +    qtest_memread(bus->qts, s->mmio32_cpu_base + addr, buf, len);
>  }
>  
>  static void qpci_spapr_memwrite(QPCIBus *bus, uint32_t addr,
>                                  const void *buf, size_t len)
>  {
>      QPCIBusSPAPR *s = container_of(bus, QPCIBusSPAPR, bus);
> -    memwrite(s->mmio32_cpu_base + addr, buf, len);
> +    qtest_memwrite(bus->qts, s->mmio32_cpu_base + addr, buf, len);
>  }
>  
>  static uint8_t qpci_spapr_config_readb(QPCIBus *bus, int devfn, uint8_t offset)
>