Hello everyone:
I try to put some function of hyp.S(in the EL2) to the EL3, and I implement it in Linux kernel 3.18.
But when I start the VM using the lkvm tool, the VM cannot start normally.
The output message like these:
terminal_0: Listening for serial connection on port 5000
terminal_1: Listening for serial connection on port 5001
terminal_2: Listening for serial connection on port 5002
terminal_3: Listening for serial connection on port 5003
Visualization web server started on port 2001
Simulation is started
Initializing cgroup subsys cpu
Linux version 3.14.43 (zm@centospc) (gcc version 4.9.1 20140529 (prerelease) (crosstool-NG linaro-1.13.1-4.9-2014.07 - Linaro GCC 4.9-2014.06) ) #1 SMP PREEMPT Sat Jun 13 17:19:23 CST 2015
CPU: AArch64 Processor [410fd000] revision 0
bootconsole [earlycon0] enabled
cma: CMA: reserved 16 MiB at 9f000000
psci: probing function IDs from device-tree
PERCPU: Embedded 10 pages/cpu @ffffffc01efeb000 s11328 r8192 d21440 u40960
Built 1 zonelists in Zone order, mobility grouping on. Total pages: 129280
Kernel command line: pci=firmware earlyprintk=smh console=hvc0 root=/dev/vda init=/bin/sh
PID hash table entries: 2048 (order: 2, 16384 bytes)
Dentry cache hash table entries: 65536 (order: 7, 524288 bytes)
Inode-cache hash table entries: 32768 (order: 6, 262144 bytes)
software IO TLB [mem 0x9a000000-0x9e000000] (64MB) mapped at [ffffffc01a000000-ffffffc01dffffff]
Memory: 420452K/524288K available (4120K kernel code, 288K rwdata, 1504K rodata, 191K init, 165K bss, 103836K reserved)
Virtual kernel memory layout:
vmalloc : 0xffffff8000000000 - 0xffffffbbffff0000 (245759 MB)
vmemmap : 0xffffffbc01c00000 - 0xffffffbc02300000 ( 7 MB)
modules : 0xffffffbffc000000 - 0xffffffc000000000 ( 64 MB)
memory : 0xffffffc000000000 - 0xffffffc020000000 ( 512 MB)
.init : 0xffffffc000600000 - 0xffffffc00062fc40 ( 192 kB)
.text : 0xffffffc000080000 - 0xffffffc0005ff1d4 ( 5629 kB)
.data : 0xffffffc000630000 - 0xffffffc0006782a0 ( 289 kB)
SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
Preemptible hierarchical RCU implementation.
RCU restricting CPUs from NR_CPUS=8 to nr_cpu_ids=1.
RCU: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=1
NR_IRQS:64 nr_irqs:64 0
Architected cp15 timer(s) running at 100.00MHz (virt).
sched_clock: 56 bits at 100MHz, resolution 10ns, wraps every 2748779069440ns
Console: colour dummy device 80x25
Calibrating delay loop (skipped), value calculated using timer frequency.. 200.00 BogoMIPS (lpj=1000000)
pid_max: default: 32768 minimum: 301
Mount-cache hash table entries: 1024 (order: 1, 8192 bytes)
Mountpoint-cache hash table entries: 1024 (order: 1, 8192 bytes)
hw perfevents: enabled with arm/armv8-pmuv3 PMU driver, 1 counters available
Then the system is stopped there.
While in the normal execution, the system should continue as follows:
Brought up 1 CPUs
SMP: Total of 1 processors activated.
devtmpfs: initialized
atomic64 test passed
regulator-dummy: no parameters
NET: Registered protocol family 16
vdso: 2 pages (1 code, 1 data) at base ffffffc000635000
hw-breakpoint: found 16 breakpoint and 16 watchpoint registers.
Serial: AMBA PL011 UART driver
bio: create slab <bio-0> at 0
SCSI subsystem initialized
usbcore: registered new interface driver usbfs
usbcore: registered new interface driver hub
usbcore: registered new device driver usb
Switched to clocksource arch_sys_counter
NET: Registered protocol family 2
TCP established hash table entries: 4096 (order: 3, 32768 bytes)
TCP bind hash table entries: 4096 (order: 4, 65536 bytes)
TCP: Hash tables configured (established 4096 bind 4096)
TCP: reno registered
UDP hash table entries: 256 (order: 1, 8192 bytes)
UDP-Lite hash table entries: 256 (order: 1, 8192 bytes)
NET: Registered protocol family 1
RPC: Registered named UNIX socket transport module.
RPC: Registered udp transport module.
RPC: Registered tcp transport module.
RPC: Registered tcp NFSv4.1 backchannel transport module.
kvm [1]: HYP mode not available
futex hash table entries: 256 (order: 2, 16384 bytes)
fuse init (API version 7.22)
9p: Installing v9fs 9p2000 file system support
msgmni has been set to 853
io scheduler noop registered
io scheduler cfq registered (default)
Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled
3f8.U6_16550A: ttyS0 at MMIO 0x3f8 (irq = 32, base_baud = 115200) is a 16550A
2f8.U6_16550A: ttyS1 at MMIO 0x2f8 (irq = 33, base_baud = 115200) is a 16550A
3e8.U6_16550A: ttyS2 at MMIO 0x3e8 (irq = 34, base_baud = 115200) is a 16550A
2e8.U6_16550A: ttyS3 at MMIO 0x2e8 (irq = 35, base_baud = 115200) is a 16550A
console [hvc0] enabled
bootconsole [earlycon0] disabled
So, what's the problem is?
Can someone give me some advice or feedback?
Thank you for your help.
The output message like these:
terminal_0: Listening for serial connection on port 5000
terminal_1: Listening for serial connection on port 5001
terminal_2: Listening for serial connection on port 5002
terminal_3: Listening for serial connection on port 5003
Visualization web server started on port 2001
Simulation is started
Initializing cgroup subsys cpu
Linux version 3.14.43 (zm@centospc) (gcc version 4.9.1 20140529 (prerelease) (crosstool-NG linaro-1.13.1-4.9-2014.07 - Linaro GCC 4.9-2014.06) ) #1 SMP PREEMPT Sat Jun 13 17:19:23 CST 2015
CPU: AArch64 Processor [410fd000] revision 0
bootconsole [earlycon0] enabled
cma: CMA: reserved 16 MiB at 9f000000
psci: probing function IDs from device-tree
PERCPU: Embedded 10 pages/cpu @ffffffc01efeb000 s11328 r8192 d21440 u40960
Built 1 zonelists in Zone order, mobility grouping on. Total pages: 129280
Kernel command line: pci=firmware earlyprintk=smh console=hvc0 root=/dev/vda init=/bin/sh
PID hash table entries: 2048 (order: 2, 16384 bytes)
Dentry cache hash table entries: 65536 (order: 7, 524288 bytes)
Inode-cache hash table entries: 32768 (order: 6, 262144 bytes)
software IO TLB [mem 0x9a000000-0x9e000000] (64MB) mapped at [ffffffc01a000000-ffffffc01dffffff]
Memory: 420452K/524288K available (4120K kernel code, 288K rwdata, 1504K rodata, 191K init, 165K bss, 103836K reserved)
Virtual kernel memory layout:
vmalloc : 0xffffff8000000000 - 0xffffffbbffff0000 (245759 MB)
vmemmap : 0xffffffbc01c00000 - 0xffffffbc02300000 ( 7 MB)
modules : 0xffffffbffc000000 - 0xffffffc000000000 ( 64 MB)
memory : 0xffffffc000000000 - 0xffffffc020000000 ( 512 MB)
.init : 0xffffffc000600000 - 0xffffffc00062fc40 ( 192 kB)
.text : 0xffffffc000080000 - 0xffffffc0005ff1d4 ( 5629 kB)
.data : 0xffffffc000630000 - 0xffffffc0006782a0 ( 289 kB)
SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
Preemptible hierarchical RCU implementation.
RCU restricting CPUs from NR_CPUS=8 to nr_cpu_ids=1.
RCU: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=1
NR_IRQS:64 nr_irqs:64 0
Architected cp15 timer(s) running at 100.00MHz (virt).
sched_clock: 56 bits at 100MHz, resolution 10ns, wraps every 2748779069440ns
Console: colour dummy device 80x25
Calibrating delay loop (skipped), value calculated using timer frequency.. 200.00 BogoMIPS (lpj=1000000)
pid_max: default: 32768 minimum: 301
Mount-cache hash table entries: 1024 (order: 1, 8192 bytes)
Mountpoint-cache hash table entries: 1024 (order: 1, 8192 bytes)
hw perfevents: enabled with arm/armv8-pmuv3 PMU driver, 1 counters available
Then the system is stopped there.
While in the normal execution, the system should continue as follows:
Brought up 1 CPUs
SMP: Total of 1 processors activated.
devtmpfs: initialized
atomic64 test passed
regulator-dummy: no parameters
NET: Registered protocol family 16
vdso: 2 pages (1 code, 1 data) at base ffffffc000635000
hw-breakpoint: found 16 breakpoint and 16 watchpoint registers.
Serial: AMBA PL011 UART driver
bio: create slab <bio-0> at 0
SCSI subsystem initialized
usbcore: registered new interface driver usbfs
usbcore: registered new interface driver hub
usbcore: registered new device driver usb
Switched to clocksource arch_sys_counter
NET: Registered protocol family 2
TCP established hash table entries: 4096 (order: 3, 32768 bytes)
TCP bind hash table entries: 4096 (order: 4, 65536 bytes)
TCP: Hash tables configured (established 4096 bind 4096)
TCP: reno registered
UDP hash table entries: 256 (order: 1, 8192 bytes)
UDP-Lite hash table entries: 256 (order: 1, 8192 bytes)
NET: Registered protocol family 1
RPC: Registered named UNIX socket transport module.
RPC: Registered udp transport module.
RPC: Registered tcp transport module.
RPC: Registered tcp NFSv4.1 backchannel transport module.
kvm [1]: HYP mode not available
futex hash table entries: 256 (order: 2, 16384 bytes)
fuse init (API version 7.22)
9p: Installing v9fs 9p2000 file system support
msgmni has been set to 853
io scheduler noop registered
io scheduler cfq registered (default)
Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled
3f8.U6_16550A: ttyS0 at MMIO 0x3f8 (irq = 32, base_baud = 115200) is a 16550A
2f8.U6_16550A: ttyS1 at MMIO 0x2f8 (irq = 33, base_baud = 115200) is a 16550A
3e8.U6_16550A: ttyS2 at MMIO 0x3e8 (irq = 34, base_baud = 115200) is a 16550A
2e8.U6_16550A: ttyS3 at MMIO 0x2e8 (irq = 35, base_baud = 115200) is a 16550A
console [hvc0] enabled
bootconsole [earlycon0] disabled
So, what's the problem is?
Can someone give me some advice or feedback?
Thank you for your help.
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