Re: [Qemu-devel] [PATCH] qemu: Update Linux headers

[Anthony Liguori <anthony@codemonkey.ws>]

Alex Williamson <alex.williamson@redhat.com> writes:

> Based on v3.7-rc1-3-g29bb4cc

Normally this would go through qemu-kvm/uq/master but since this is from
Linus' tree, it's less of a concern.

Nonetheless, I'd prefer we did it from v3.7-rc1 instead of a random git
snapshot.

Regards,

Anthony Liguori

>
> Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
> ---
>
>  Trying to get KVM_IRQFD_FLAG_RESAMPLE and friends for vfio-pci
>
>  linux-headers/asm-x86/kvm.h         |   17 +++++++++++++++++
>  linux-headers/linux/kvm.h           |   25 +++++++++++++++++++++----
>  linux-headers/linux/kvm_para.h      |    6 +++---
>  linux-headers/linux/vfio.h          |    6 +++---
>  linux-headers/linux/virtio_config.h |    6 +++---
>  linux-headers/linux/virtio_ring.h   |    6 +++---
>  6 files changed, 50 insertions(+), 16 deletions(-)
>
> diff --git a/linux-headers/asm-x86/kvm.h b/linux-headers/asm-x86/kvm.h
> index 246617e..a65ec29 100644
> --- a/linux-headers/asm-x86/kvm.h
> +++ b/linux-headers/asm-x86/kvm.h
> @@ -9,6 +9,22 @@
>  #include <linux/types.h>
>  #include <linux/ioctl.h>
>  
> +#define DE_VECTOR 0
> +#define DB_VECTOR 1
> +#define BP_VECTOR 3
> +#define OF_VECTOR 4
> +#define BR_VECTOR 5
> +#define UD_VECTOR 6
> +#define NM_VECTOR 7
> +#define DF_VECTOR 8
> +#define TS_VECTOR 10
> +#define NP_VECTOR 11
> +#define SS_VECTOR 12
> +#define GP_VECTOR 13
> +#define PF_VECTOR 14
> +#define MF_VECTOR 16
> +#define MC_VECTOR 18
> +
>  /* Select x86 specific features in <linux/kvm.h> */
>  #define __KVM_HAVE_PIT
>  #define __KVM_HAVE_IOAPIC
> @@ -25,6 +41,7 @@
>  #define __KVM_HAVE_DEBUGREGS
>  #define __KVM_HAVE_XSAVE
>  #define __KVM_HAVE_XCRS
> +#define __KVM_HAVE_READONLY_MEM
>  
>  /* Architectural interrupt line count. */
>  #define KVM_NR_INTERRUPTS 256
> diff --git a/linux-headers/linux/kvm.h b/linux-headers/linux/kvm.h
> index 4b9e575..81d2feb 100644
> --- a/linux-headers/linux/kvm.h
> +++ b/linux-headers/linux/kvm.h
> @@ -101,9 +101,13 @@ struct kvm_userspace_memory_region {
>  	__u64 userspace_addr; /* start of the userspace allocated memory */
>  };
>  
> -/* for kvm_memory_region::flags */
> -#define KVM_MEM_LOG_DIRTY_PAGES  1UL
> -#define KVM_MEMSLOT_INVALID      (1UL << 1)
> +/*
> + * The bit 0 ~ bit 15 of kvm_memory_region::flags are visible for userspace,
> + * other bits are reserved for kvm internal use which are defined in
> + * include/linux/kvm_host.h.
> + */
> +#define KVM_MEM_LOG_DIRTY_PAGES	(1UL << 0)
> +#define KVM_MEM_READONLY	(1UL << 1)
>  
>  /* for KVM_IRQ_LINE */
>  struct kvm_irq_level {
> @@ -618,6 +622,10 @@ struct kvm_ppc_smmu_info {
>  #define KVM_CAP_PPC_GET_SMMU_INFO 78
>  #define KVM_CAP_S390_COW 79
>  #define KVM_CAP_PPC_ALLOC_HTAB 80
> +#ifdef __KVM_HAVE_READONLY_MEM
> +#define KVM_CAP_READONLY_MEM 81
> +#endif
> +#define KVM_CAP_IRQFD_RESAMPLE 82
>  
>  #ifdef KVM_CAP_IRQ_ROUTING
>  
> @@ -683,12 +691,21 @@ struct kvm_xen_hvm_config {
>  #endif
>  
>  #define KVM_IRQFD_FLAG_DEASSIGN (1 << 0)
> +/*
> + * Available with KVM_CAP_IRQFD_RESAMPLE
> + *
> + * KVM_IRQFD_FLAG_RESAMPLE indicates resamplefd is valid and specifies
> + * the irqfd to operate in resampling mode for level triggered interrupt
> + * emlation.  See Documentation/virtual/kvm/api.txt.
> + */
> +#define KVM_IRQFD_FLAG_RESAMPLE (1 << 1)
>  
>  struct kvm_irqfd {
>  	__u32 fd;
>  	__u32 gsi;
>  	__u32 flags;
> -	__u8  pad[20];
> +	__u32 resamplefd;
> +	__u8  pad[16];
>  };
>  
>  struct kvm_clock_data {
> diff --git a/linux-headers/linux/kvm_para.h b/linux-headers/linux/kvm_para.h
> index 7bdcf93..cea2c5c 100644
> --- a/linux-headers/linux/kvm_para.h
> +++ b/linux-headers/linux/kvm_para.h
> @@ -1,5 +1,5 @@
> -#ifndef __LINUX_KVM_PARA_H
> -#define __LINUX_KVM_PARA_H
> +#ifndef _UAPI__LINUX_KVM_PARA_H
> +#define _UAPI__LINUX_KVM_PARA_H
>  
>  /*
>   * This header file provides a method for making a hypercall to the host
> @@ -25,4 +25,4 @@
>   */
>  #include <asm/kvm_para.h>
>  
> -#endif /* __LINUX_KVM_PARA_H */
> +#endif /* _UAPI__LINUX_KVM_PARA_H */
> diff --git a/linux-headers/linux/vfio.h b/linux-headers/linux/vfio.h
> index f787b72..4758d1b 100644
> --- a/linux-headers/linux/vfio.h
> +++ b/linux-headers/linux/vfio.h
> @@ -8,8 +8,8 @@
>   * it under the terms of the GNU General Public License version 2 as
>   * published by the Free Software Foundation.
>   */
> -#ifndef VFIO_H
> -#define VFIO_H
> +#ifndef _UAPIVFIO_H
> +#define _UAPIVFIO_H
>  
>  #include <linux/types.h>
>  #include <linux/ioctl.h>
> @@ -365,4 +365,4 @@ struct vfio_iommu_type1_dma_unmap {
>  
>  #define VFIO_IOMMU_UNMAP_DMA _IO(VFIO_TYPE, VFIO_BASE + 14)
>  
> -#endif /* VFIO_H */
> +#endif /* _UAPIVFIO_H */
> diff --git a/linux-headers/linux/virtio_config.h b/linux-headers/linux/virtio_config.h
> index 4f51d8f..b7cda39 100644
> --- a/linux-headers/linux/virtio_config.h
> +++ b/linux-headers/linux/virtio_config.h
> @@ -1,5 +1,5 @@
> -#ifndef _LINUX_VIRTIO_CONFIG_H
> -#define _LINUX_VIRTIO_CONFIG_H
> +#ifndef _UAPI_LINUX_VIRTIO_CONFIG_H
> +#define _UAPI_LINUX_VIRTIO_CONFIG_H
>  /* This header, excluding the #ifdef __KERNEL__ part, is BSD licensed so
>   * anyone can use the definitions to implement compatible drivers/servers.
>   *
> @@ -51,4 +51,4 @@
>   * suppressed them? */
>  #define VIRTIO_F_NOTIFY_ON_EMPTY	24
>  
> -#endif /* _LINUX_VIRTIO_CONFIG_H */
> +#endif /* _UAPI_LINUX_VIRTIO_CONFIG_H */
> diff --git a/linux-headers/linux/virtio_ring.h b/linux-headers/linux/virtio_ring.h
> index 1b333e2..921694a 100644
> --- a/linux-headers/linux/virtio_ring.h
> +++ b/linux-headers/linux/virtio_ring.h
> @@ -1,5 +1,5 @@
> -#ifndef _LINUX_VIRTIO_RING_H
> -#define _LINUX_VIRTIO_RING_H
> +#ifndef _UAPI_LINUX_VIRTIO_RING_H
> +#define _UAPI_LINUX_VIRTIO_RING_H
>  /* An interface for efficient virtio implementation, currently for use by KVM
>   * and lguest, but hopefully others soon.  Do NOT change this since it will
>   * break existing servers and clients.
> @@ -160,4 +160,4 @@ static __inline__ int vring_need_event(__u16 event_idx, __u16 new_idx, __u16 old
>  	return (__u16)(new_idx - event_idx - 1) < (__u16)(new_idx - old);
>  }
>  
> -#endif /* _LINUX_VIRTIO_RING_H */
> +#endif /* _UAPI_LINUX_VIRTIO_RING_H */