http://blog.gmane.org/gmane.linux.kernel.virtualization.lguest hourly 1 1901-01-01T00:00+00:00 http://gmane.org/img/gmane-25t.png http://gmane.org http://comments.gmane.org/gmane.linux.kernel.virtualization.lguest/646 Hello! I'd like to ask if I can go on with my lguest to-do list or if PAE is causing any problems (if this is the case, please let me know and I'll try to fix it). regards Matias Matias Zabaljauregui 2008-11-11T14:13:03 http://comments.gmane.org/gmane.linux.kernel.virtualization.lguest/585 _______________________________________________ Lguest mailing list Lguest-mnsaURCQ41sdnm+yROfE0A< at >public.gmane.org https://ozlabs.org/mailman/listinfo/lguest octane indice 2008-10-31T15:24:00 http://comments.gmane.org/gmane.linux.kernel.virtualization.lguest/584 The following changes since commit 65fc716fa673cf98fb5887180fd3c52ca0371198: Linus Torvalds (1): Merge git://git.kernel.org/.../sam/kbuild-fixes are available in the git repository at: ssh://master.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus.git master Rusty Russell (3): lguest: fix example launcher compile after moved asm-x86 dir. lguest: fix early_ioremap. lguest: fix irq vectors. Documentation/lguest/Makefile | 2 +- Documentation/lguest/lguest.c | 2 +- arch/x86/lguest/boot.c | 32 ++++++++++++++++++++------------ 3 files changed, 22 insertions(+), 14 deletions(-) diff --git a/Documentation/lguest/Makefile b/Documentation/lguest/Makefile index bac037e..725eef8 100644 --- a/Documentation/lguest/Makefile +++ b/Documentation/lguest/Makefile < at >< at > -1,5 +1,5 < at >< at > # This creates the demonstration utility "lguest" which runs a Linux guest. -CFLAGS:=-Wall -Wmissing-declarations -Wmissing-prototypes -O3 -I../../include +CFLAGS:=-Wall -Wmissing-decla Rusty Russell 2008-10-31T00:53:14 http://comments.gmane.org/gmane.linux.kernel.virtualization.lguest/583 The following changes since commit 49fdf6785fd660e18a1eb4588928f47e9fa29a9a: Linus Torvalds (1): Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block are available in the git repository at: ssh://master.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus.git master Mark McLoughlin (2): virtio_net: Recycle some more rx buffer pages virtio_net: hook up the set-tso ethtool op Rusty Russell (3): lguest: fix example launcher compile after moved asm-x86 dir. lguest: fix early_ioremap. lguest: fix irq vectors. Documentation/lguest/Makefile | 2 +- Documentation/lguest/lguest.c | 2 +- arch/x86/lguest/boot.c | 32 ++++++++++++++++++++------------ drivers/net/virtio_net.c | 22 ++++++++++++++-------- 4 files changed, 36 insertions(+), 22 deletions(-) diff --git a/Documentation/lguest/Makefile b/Documentation/lguest/Makefile index bac037e..725eef8 100644 --- a/Documentation/lguest/Makefile +++ b/Documentation/lguest/Makefile < at >< at > Rusty Russell 2008-10-28T12:09:40 http://comments.gmane.org/gmane.linux.kernel.virtualization.lguest/579 This patch allows us to use KVM hypercalls. Signed-off-by: Matias Zabaljauregui <zabaljauregui-Re5JQEeQqe8AvxtiuMwx3w< at >public.gmane.org> --- arch/x86/lguest/boot.c | 87 ++++++++++++++++++++------------- arch/x86/lguest/i386_head.S | 4 +- drivers/lguest/interrupts_and_traps.c | 7 ++- drivers/lguest/lguest_device.c | 4 +- drivers/lguest/x86/core.c | 54 ++++++++++++++++++++- include/asm-x86/lguest_hcall.h | 24 ++-------- 6 files changed, 118 insertions(+), 62 deletions(-) diff --git a/arch/x86/lguest/boot.c b/arch/x86/lguest/boot.c index c6a6b75..f6ae1cb 100644 --- a/arch/x86/lguest/boot.c +++ b/arch/x86/lguest/boot.c < at >< at > -106,7 +106,7 < at >< at > static void async_hcall(unsigned long call, unsigned long arg1, local_irq_save(flags); if (lguest_data.hcall_status[next_call] != 0xFF) { /* Table full, so do normal hcall which will flush table. */ -hcall(call, arg1, arg2, arg3); +kvm_hypercall3(call, arg1, arg2, arg3); } else { lguest_da Matias Zabaljauregui 2008-10-23T21:17:13 http://comments.gmane.org/gmane.linux.kernel.virtualization.lguest/577 This patch allows us to use KVM hypercalls. Signed-off-by: Matias Zabaljauregui <zabaljauregui-Re5JQEeQqe8AvxtiuMwx3w< at >public.gmane.org> --- arch/x86/lguest/boot.c | 87 ++++++++++++++++++++------------- arch/x86/lguest/i386_head.S | 4 +- drivers/lguest/interrupts_and_traps.c | 7 ++- drivers/lguest/lguest_device.c | 4 +- drivers/lguest/x86/core.c | 49 ++++++++++++++++++ include/asm-x86/lguest_hcall.h | 24 ++-------- 6 files changed, 114 insertions(+), 61 deletions(-) diff --git a/arch/x86/lguest/boot.c b/arch/x86/lguest/boot.c index c6a6b75..f6ae1cb 100644 --- a/arch/x86/lguest/boot.c +++ b/arch/x86/lguest/boot.c < at >< at > -106,7 +106,7 < at >< at > static void async_hcall(unsigned long call, unsigned long arg1, local_irq_save(flags); if (lguest_data.hcall_status[next_call] != 0xFF) { /* Table full, so do normal hcall which will flush table. */ -hcall(call, arg1, arg2, arg3); +kvm_hypercall3(call, arg1, arg2, arg3); } else { lguest_data. Matias Zabaljauregui 2008-10-22T22:32:06 http://comments.gmane.org/gmane.linux.kernel.virtualization.lguest/574 Tiago Maluta 2008-10-22T13:15:00 http://comments.gmane.org/gmane.linux.kernel.virtualization.lguest/573 In the last few weeks I tried some versions of Linux on lguest and noted a particularly behavior on my machine so I'd like to ask few questions about lguest. Basically I'm using the following configuration for lguest in my .config file: CONFIG_PARAVIRT=y CONFIG_LGUEST_GUEST=y CONFIG_HIGHMEM64G=n CONFIG_PHYSICAL_ALIGN=0x100000 CONFIG_EXPERIMENTAL=y CONFIG_VIRTIO_BLK=m CONFIG_VIRTIO_NET=m CONFIG_TUN=m CONFIG_LGUEST=m I'm tried some variations too, for example. CONFIG_VIRTIO_BLK=y CONFIG_VIRTIO_NET=y The following example from lguest.txt (Documentation) sometimes works and sometimes doesn't work... ~#Documentation/lguest/lguest --tunnet=192.168.19.1 --block=/root/initrd-1.1-i386.img 64 vmlinux root=/dev/vda (...) IPv6 over IPv4 tunneling driver NET: Registered protocol family 17 RPC: Registered udp transport module. RPC: Registered tcp transport module. Using IPI No-Shortcut mode VFS: Cannot open root device "vda" or unknown-block(254,0) Please append a correct "root=" boot option; here are the available Tiago Maluta 2008-10-21T18:51:29 http://comments.gmane.org/gmane.linux.kernel.virtualization.lguest/558 _______________________________________________ Lguest mailing list Lguest-mnsaURCQ41sdnm+yROfE0A< at >public.gmane.org https://ozlabs.org/mailman/listinfo/lguest octane indice 2008-09-04T13:27:50 http://comments.gmane.org/gmane.linux.kernel.virtualization.lguest/548 Hi, I'm using 2.6.27-05323-g26e9a39 and when I try to use lguest: ~#Documentation/lguest/lguest 128 vmlinux lguest: unhandled trap 14 at 0xc0594f6a (0xff900000) Tiago Maluta 2008-10-18T23:36:51 http://comments.gmane.org/gmane.linux.kernel.virtualization.lguest/546 This patch allows us to use KVM hypercalls Signed-off-by: Matias Zabaljauregui <zabaljauregui-Re5JQEeQqe8AvxtiuMwx3w< at >public.gmane.org> --- diff --git a/arch/x86/lguest/boot.c b/arch/x86/lguest/boot.c index c6a6b75..d5ca7e6 100644 --- a/arch/x86/lguest/boot.c +++ b/arch/x86/lguest/boot.c < at >< at > -106,7 +106,7 < at >< at > static void async_hcall(unsigned long call, unsigned long arg1, local_irq_save(flags); if (lguest_data.hcall_status[next_call] != 0xFF) { /* Table full, so do normal hcall which will flush table. */ -hcall(call, arg1, arg2, arg3); +kvm_hypercall3(call, arg1, arg2, arg3); } else { lguest_data.hcalls[next_call].arg0 = call; lguest_data.hcalls[next_call].arg1 = arg1; < at >< at > -133,13 +133,38 < at >< at > static void async_hcall(unsigned long call, unsigned long arg1, * * So, when we're in lazy mode, we call async_hcall() to store the call for * future processing: */ -static void lazy_hcall(unsigned long call, +static void lazy_hcall0(unsigned long call) +{ +if (paravirt_get_lazy_mode() == PARAVIRT_ Matias Zabaljauregui 2008-10-17T23:04:24 http://comments.gmane.org/gmane.linux.kernel.virtualization.lguest/538 Hi, I'd like to make a test using lguest booting a kernel with initramfs. From Documentation/filesystems/ramfs-rootfs-initramfs.txt I tried the approach creating a file (initramfs_list) and compiled. Basically my file contains: nod /dev/console 644 0 0 c 5 1 nod /dev/loop0 644 0 0 b 7 0 nod /dev/tty0 600 0 0 c 4 0 nod /dev/tty1 600 0 0 c 4 1 nod /dev/ttyS0 644 0 0 c 4 64 dir /bin 755 1000 1000 file /bin/busybox initramfs/busybox 755 0 0 slink /bin/sh /bin/busybox 777 0 0 slink /init initramfs/init.sh 755 0 0 dir /proc 755 0 0 dir /sys 755 0 0 dir /mnt 755 0 0 Where init.sh contains only echo "Hello" and busybox is statically linked. #Documentation/lguest/lguest 64 vmlinux (...) Using IPI No-Shortcut mode Root-NFS: No NFS server available, giving up. VFS: Unable to mount root fs via NFS, trying floppy. VFS: Insert root floppy and press ENTER VFS: Cannot open root device "<NULL>" or unknown-block(2,0) Please append a correct "root=" boot option; here are the available partitions: Kernel panic - not synci Tiago Maluta 2008-10-16T03:16:06 http://comments.gmane.org/gmane.linux.kernel.virtualization.lguest/535 Split add_used() into two logical steps - adding an buffer to the used ring and notifying the other side of used buffers. Signed-off-by: Mark McLoughlin <markmc-H+wXaHxf7aLQT0dZR+AlfA< at >public.gmane.org> --- Documentation/lguest/lguest.c | 30 ++++++++++++++++++++++-------- 1 files changed, 22 insertions(+), 8 deletions(-) diff --git a/Documentation/lguest/lguest.c b/Documentation/lguest/lguest.c index 7228369..2ddf0c6 100644 --- a/Documentation/lguest/lguest.c +++ b/Documentation/lguest/lguest.c < at >< at > -750,21 +750,35 < at >< at > static unsigned get_vq_desc(struct virtqueue *vq, return head; } -/* After we've used one of their buffers, we tell them about it. We'll then - * want to send them an interrupt, using trigger_irq(). */ -static void add_used(struct virtqueue *vq, unsigned int head, int len) +/* After we've used one of their buffers, we add it to the used list */ +static void add_used(struct virtqueue *vq, unsigned int head, int len, int idx) { struct vring_used_elem *used; +idx += vq->vring.used-> Mark McLoughlin 2008-10-08T19:35:07 http://comments.gmane.org/gmane.linux.kernel.virtualization.lguest/532 Hi, I'm trying to mount rootfs from lguest over NFS. (1) I can use lguest with an initrd image perfectly. (3) My NFS it's working too. (2) I'm using: # lguest 64 vmlinux root=/dev/nfs \ nfsroot=192.168.254.1:/ \ ip=192.168.254.40:192.168.254.1:192.168.254.1:255.255.255.0:\ lguest:eth0:off After booting I got: (...) IP-Config: Device `eth0' not found. Looking up port of RPC 100003/2 on 192.168.254.1 (3) I'm using Linux 2.6.26.3 on Gentoo I've tried many variations withou success. I'd like to know if it's possible to use lguest over nfs? Best regards, Tiago Maluta Novos endereços, o Yahoo! que você conhece. Crie um email novo com a sua cara < at >ymail.com ou < at >rocketmail.com. http://br.new.mail.yahoo.com/addresses Tiago Maluta 2008-10-08T00:07:04 http://comments.gmane.org/gmane.linux.kernel.virtualization.lguest/531 This patch adds Physical Address Extension support to lguest. Signed-off-by: Matias Zabaljauregui <zabaljauregui-Re5JQEeQqe8AvxtiuMwx3w< at >public.gmane.org> diff --git a/arch/x86/lguest/Kconfig b/arch/x86/lguest/Kconfig index c70e12b..a108c09 100644 --- a/arch/x86/lguest/Kconfig +++ b/arch/x86/lguest/Kconfig < at >< at > -2,7 +2,6 < at >< at > config LGUEST_GUEST bool "Lguest guest support" select PARAVIRT depends on X86_32 -depends on !X86_PAE depends on !X86_VOYAGER select VIRTIO select VIRTIO_RING diff --git a/arch/x86/lguest/boot.c b/arch/x86/lguest/boot.c index d9249a8..fc2331e 100644 --- a/arch/x86/lguest/boot.c +++ b/arch/x86/lguest/boot.c < at >< at > -334,8 +334,12 < at >< at > static void lguest_cpuid(unsigned int *ax, unsigned int *bx, case 1:/* Basic feature request. */ /* We only allow kernel to see SSE3, CMPXCHG16B and SSSE3 */ *cx &= 0x00002201; -/* SSE, SSE2, FXSR, MMX, CMOV, CMPXCHG8B, TSC, FPU. */ +/* SSE, SSE2, FXSR, MMX, CMOV, CMPXCHG8B, TSC, FPU, PAE. */ +#ifdef CONFIG_X86_PAE +*dx &= 0x07808151; +#e Matias Zabaljauregui 2008-09-29T04:40:07 http://comments.gmane.org/gmane.linux.kernel.virtualization.lguest/530 This patch adds Page Size Extension support to lguest. Signed-off-by: Matias Zabaljauregui <zabaljauregui-Re5JQEeQqe8AvxtiuMwx3w< at >public.gmane.org> diff --git a/arch/x86/lguest/boot.c b/arch/x86/lguest/boot.c index fc2331e..c6a6b75 100644 --- a/arch/x86/lguest/boot.c +++ b/arch/x86/lguest/boot.c < at >< at > -334,11 +334,11 < at >< at > static void lguest_cpuid(unsigned int *ax, unsigned int *bx, case 1:/* Basic feature request. */ /* We only allow kernel to see SSE3, CMPXCHG16B and SSSE3 */ *cx &= 0x00002201; -/* SSE, SSE2, FXSR, MMX, CMOV, CMPXCHG8B, TSC, FPU, PAE. */ +/* SSE, SSE2, FXSR, MMX, CMOV, CMPXCHG8B, TSC, FPU, PSE, PAE. */ #ifdef CONFIG_X86_PAE -*dx &= 0x07808151; +*dx &= 0x07808159; #else -*dx &= 0x07808111; +*dx &= 0x07808119; #endif /* The Host can do a nice optimization if it knows that the * kernel mappings (addresses above 0xC0000000 or whatever diff --git a/drivers/lguest/page_tables.c b/drivers/lguest/page_tables.c index f606d68..2a503c6 100644 --- a/drivers/lguest/page_tables Matias Zabaljauregui 2008-09-29T04:40:19 http://comments.gmane.org/gmane.linux.kernel.virtualization.lguest/529 This patch moves the initial guest page table creation code to the host, so the launcher keeps working with PAE enabled configs. Signed-off-by: Matias Zabaljauregui <zabaljauregui-Re5JQEeQqe8AvxtiuMwx3w< at >public.gmane.org> diff --git a/Documentation/lguest/lguest.c b/Documentation/lguest/lguest.c index 7228369..6c641b6 100644 --- a/Documentation/lguest/lguest.c +++ b/Documentation/lguest/lguest.c < at >< at > -481,51 +481,6 < at >< at > static unsigned long load_initrd(const char *name, unsigned long mem) /* We return the initrd size. */ return len; } - -/* Once we know how much memory we have we can construct simple linear page - * tables which set virtual == physical which will get the Guest far enough - * into the boot to create its own. - * - * We lay them out of the way, just below the initrd (which is why we need to - * know its size here). */ -static unsigned long setup_pagetables(unsigned long mem, - unsigned long initrd_size) -{ -unsigned long *pgdir, *linear; -unsigned int mapped_pages, i, linear_pages Matias Zabaljauregui 2008-09-29T04:39:55 http://comments.gmane.org/gmane.linux.kernel.virtualization.lguest/528 Hello all, Here is the non line-wrapped version, now that I've read "Documentation/email-clients.txt". Sorry for the little mess. This bisectable series of patches implements PAE and PSE support for lguest. The guest page tables initialization code is moved to the host, so we can use the same launcher when PAE is enabled. There are some issues I'd like to mention: [PATCH 1/3] * When I moved the PT init code to the host I realized I needed a way to get the guest phys memory size and initrd size. I got them from the boot header. Is this correct? [PATCH 2/3] * The hypercalls "set_*" still use 32 bit arguments, and we need 64 bit for full PAE PT entries. IIRC, the guest cannot have more than 2,5 gb (or so) of phys memory, so it shouldn't be a problem right now. Rusty has been wanting to change over to using kvm-style hypercalls, which would fix this issue. I'll start working on this as soon as possible. [PATCH 3/3] * There is some "duplicated" code for implementing the PAE version. This seems to be an ext Matias Zabaljauregui 2008-09-29T04:38:59 http://comments.gmane.org/gmane.linux.kernel.virtualization.lguest/527 Hello again, The patches I just sent seem to have been line-wrapped severely by my gmail account. I attach them here, just in case you want to try them, while I learn how to use git-send-email... regards _______________________________________________ Lguest mailing list Lguest-mnsaURCQ41sdnm+yROfE0A< at >public.gmane.org https://ozlabs.org/mailman/listinfo/lguest Matias Zabaljauregui 2008-09-27T01:45:35 http://comments.gmane.org/gmane.linux.kernel.virtualization.lguest/526 This patch adds Page Size Extension support to lguest. Signed-off-by: Matias Zabaljauregui <zabaljauregui-Re5JQEeQqe8AvxtiuMwx3w< at >public.gmane.org> diff --git a/arch/x86/lguest/boot.c b/arch/x86/lguest/boot.c index fc2331e..c6a6b75 100644 --- a/arch/x86/lguest/boot.c +++ b/arch/x86/lguest/boot.c < at >< at > -334,11 +334,11 < at >< at > static void lguest_cpuid(unsigned int *ax, unsigned int *bx, case 1:/* Basic feature request. */ /* We only allow kernel to see SSE3, CMPXCHG16B and SSSE3 */ *cx &= 0x00002201; -/* SSE, SSE2, FXSR, MMX, CMOV, CMPXCHG8B, TSC, FPU, PAE. */ +/* SSE, SSE2, FXSR, MMX, CMOV, CMPXCHG8B, TSC, FPU, PSE, PAE. */ #ifdef CONFIG_X86_PAE -*dx &= 0x07808151; +*dx &= 0x07808159; #else -*dx &= 0x07808111; +*dx &= 0x07808119; #endif /* The Host can do a nice optimization if it knows that the * kernel mappings (addresses above 0xC0000000 or whatever diff --git a/drivers/lguest/page_tables.c b/drivers/lguest/page_tables.c index f606d68..2a503c6 100644 --- a/drivers/lguest/page_tables Matias Zabaljauregui 2008-09-26T23:52:08 http://comments.gmane.org/gmane.linux.kernel.virtualization.lguest/525 This patch adds Physical Address Extension support to lguest. Signed-off-by: Matias Zabaljauregui <zabaljauregui-Re5JQEeQqe8AvxtiuMwx3w< at >public.gmane.org> diff --git a/arch/x86/lguest/Kconfig b/arch/x86/lguest/Kconfig index c70e12b..a108c09 100644 --- a/arch/x86/lguest/Kconfig +++ b/arch/x86/lguest/Kconfig < at >< at > -2,7 +2,6 < at >< at > config LGUEST_GUEST bool "Lguest guest support" select PARAVIRT depends on X86_32 -depends on !X86_PAE depends on !X86_VOYAGER select VIRTIO select VIRTIO_RING diff --git a/arch/x86/lguest/boot.c b/arch/x86/lguest/boot.c index d9249a8..fc2331e 100644 --- a/arch/x86/lguest/boot.c +++ b/arch/x86/lguest/boot.c < at >< at > -334,8 +334,12 < at >< at > static void lguest_cpuid(unsigned int *ax, unsigned int *bx, case 1:/* Basic feature request. */ /* We only allow kernel to see SSE3, CMPXCHG16B and SSSE3 */ *cx &= 0x00002201; -/* SSE, SSE2, FXSR, MMX, CMOV, CMPXCHG8B, TSC, FPU. */ +/* SSE, SSE2, FXSR, MMX, CMOV, CMPXCHG8B, TSC, FPU, PAE. */ +#ifdef CONFIG_X86_PAE +*dx &= 0x07808151; +#e Matias Zabaljauregui 2008-09-26T23:51:46 Search the mailing list at Gmane query http://search.gmane.org/?group=$group=gmane.linux.kernel.virtualization.lguest